{ "page": { "schema_version": 2, "tenant": "aubree-chavarriga", "community": { "slug": "altadena", "name": "Altadena", "kind": "cdp", "jurisdiction": null, "county": "Los Angeles", "state": "CA", "postal_codes": [ "91001" ], "tier": 1 }, "intent": "overview", "as_of": "2026-10-22", "module_flags_sha256": "886b0fcf2449ff8892a5d1ffac2a2d96060d7f5a598da9e971a547436937db44", "gate": { "indexable": true, "tier": 1, "reasons": [] }, "facts": { "geo.land_sq_mi": { "source_layer": "tigerweb_place", "source_name": "U.S. Census Bureau TIGERweb", "license": "US Government work (public domain, 17 U.S.C. 105); credit U.S. Census Bureau", "n": null, "value": 8.5, "display": "8.5", "unit": "square miles", "as_of": "2020-04-01", "window": "2020 Census geography", "label": "Land area inside Altadena", "geography": "Altadena Census place boundary" }, "geo.geography_type": { "source_layer": "tigerweb_place", "source_name": "U.S. Census Bureau TIGERweb", "license": "US Government work (public domain, 17 U.S.C. 105); credit U.S. Census Bureau", "n": null, "value": "Census Designated Place", "display": "Census Designated Place", "unit": null, "as_of": "2026-10-21", "window": "current boundaries retrieved 2026-10-21", "label": "Census geography type that defines the boundary used for the statistics of Altadena", "geography": "Altadena Census place boundary" }, "poi.parks_count": { "source_layer": "osm_overpass", "source_name": "OpenStreetMap", "license": "ODbL 1.0; credit (c) OpenStreetMap contributors", "n": null, "as_of": "2026-10-21", "window": "snapshot 2026-10-21", "value": 4, "display": "4", "unit": "named parks", "label": "Named parks mapped in OpenStreetMap inside the boundary of Altadena", "geography": "Altadena Census place boundary" }, "poi.parks_listed": { "source_layer": "osm_overpass", "source_name": "OpenStreetMap", "license": "ODbL 1.0; credit (c) OpenStreetMap contributors", "n": null, "as_of": "2026-10-21", "window": "snapshot 2026-10-21", "value": [ "Charles S. Farnsworth Park", "Charles White Park", "Loma Alta Park", "Mount Lowe Park" ], "display": "Charles S. 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credit (c) OpenStreetMap contributors", "n": null, "as_of": "2026-10-21", "window": "snapshot 2026-10-21", "value": 24, "display": "24", "unit": "named trails", "label": "Named trails and paths mapped in OpenStreetMap inside or within about 0.5 mile of the boundary of Altadena", "geography": "Altadena Census place boundary" }, "poi.trails_listed": { "source_layer": "osm_overpass", "source_name": "OpenStreetMap", "license": "ODbL 1.0; credit (c) OpenStreetMap contributors", "n": null, "as_of": "2026-10-21", "window": "snapshot 2026-10-21", "value": [ "Altadena Crest Access Trail", "Altadena Crest Trail", "Altadena Crest Trail Connector", "Camp Huntington Trail", "Chaney Trail", "El Prieto Trail" ], "display": "Altadena Crest Access Trail, Altadena Crest Trail, Altadena Crest Trail Connector, Camp Huntington Trail, Chaney Trail, El Prieto Trail", "unit": null, "label": "Names of up to 6 of those trails, nearest first", "geography": "Altadena Census place boundary" }, "geo.county": { "source_layer": "tigerweb_place", "source_name": "U.S. Census Bureau TIGERweb", "license": "US Government work (public domain, 17 U.S.C. 105); credit U.S. Census Bureau", "n": null, "as_of": "2026-10-21", "window": "current boundaries retrieved 2026-10-21", "value": "Los Angeles", "display": "Los Angeles County", "unit": null, "label": "County that contains the interior point of Altadena", "geography": "Altadena Census place boundary" }, "geo.unincorporated_share_pct": { "source_layer": "tigerweb_place", "source_name": "U.S. Census Bureau TIGERweb", "license": "US Government work (public domain, 17 U.S.C. 105); credit U.S. Census Bureau", "n": null, "as_of": "2026-10-21", "window": "current boundaries retrieved 2026-10-21", "value": 99.7, "display": "99.7", "unit": "percent of sampled boundary area", "label": "Share of Altadena outside every incorporated city (grid sample of 920 points)", "geography": "Altadena Census place boundary" }, "acs.pop_est": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 41705, "display": "41,705", "unit": "people", "label": "Estimated population of Altadena (ACS estimate; margin of error +/-2,203)", "geography": "Altadena Census place" }, "acs.hu_est": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 15815, "display": "15,815", "unit": "housing units", "label": "Estimated housing units in Altadena (ACS table B25001)", "geography": "Altadena Census place" }, "acs.housing.occupied": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 15092, "display": "15,092", "unit": "occupied housing units", "label": "Estimated occupied housing units in Altadena (ACS table B25003)", "geography": "Altadena Census place" }, "acs.housing.owner_count": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 11603, "display": "11,603", "unit": "owner-occupied units", "label": "Estimated owner-occupied housing units in Altadena", "geography": "Altadena Census place" }, "acs.housing.renter_count": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 3489, "display": "3,489", "unit": "renter-occupied units", "label": "Estimated renter-occupied housing units in Altadena", "geography": "Altadena Census place" }, "acs.housing.owner_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 76.9, "display": "76.9", "unit": "percent of occupied housing units", "label": "Share of occupied housing units that are owner-occupied in Altadena (computed in code from two ACS counts)", "geography": "Altadena Census place" }, "acs.housing.renter_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 23.1, "display": "23.1", "unit": "percent of occupied housing units", "label": "Share of occupied housing units that are renter-occupied in Altadena (computed in code from two ACS counts)", "geography": "Altadena Census place" }, "acs.housing.median_year_built": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 1946, "display": "1946", "unit": "year", "label": "Median year the housing structures in Altadena were built (ACS table B25035)", "geography": "Altadena Census place" }, "acs.housing.median_value": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 1120000, "display": "$1,120,000", "unit": "US dollars", "label": "Median value of owner-occupied housing units in Altadena (ACS table B25077; owner-reported; margin of error +/-$29,753)", "geography": "Altadena Census place" }, "acs.housing.median_rent": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 2355, "display": "$2,355", "unit": "US dollars per month", "label": "Median gross rent in Altadena (ACS table B25064; margin of error +/-$174)", "geography": "Altadena Census place" }, "acs.commute.workers": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 15111, "display": "15,111", "unit": "workers", "label": "Workers aged 16 and over who do not work from home, with a reported travel time (ACS table B08303), in Altadena", "geography": "Altadena Census place" }, "acs.commute.under20_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 38.7, "display": "38.7", "unit": "percent of commuting workers", "label": "Share of commuting workers with a one-way commute under 20 minutes in Altadena (computed in code from ACS B08303 bins)", "geography": "Altadena Census place" }, "acs.commute.20_44_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 43.5, "display": "43.5", "unit": "percent of commuting workers", "label": "Share of commuting workers with a one-way commute of 20 to 44 minutes in Altadena (computed in code from ACS B08303 bins)", "geography": "Altadena Census place" }, "acs.commute.45plus_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 17.8, "display": "17.8", "unit": "percent of commuting workers", "label": "Share of commuting workers with a one-way commute of 45 minutes or more in Altadena (computed in code from ACS B08303 bins)", "geography": "Altadena Census place" }, "acs.commute.drive_alone_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 62.3, "display": "62.3", "unit": "percent of workers", "label": "Share of workers aged 16 and over who drive alone to work in Altadena (computed in code from ACS table B08301)", "geography": "Altadena Census place" }, "acs.commute.carpool_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 6.4, "display": "6.4", "unit": "percent of workers", "label": "Share of workers aged 16 and over who carpool to work in Altadena (computed in code from ACS table B08301)", "geography": "Altadena Census place" }, "acs.commute.transit_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 1.5, "display": "1.5", "unit": "percent of workers", "label": "Share of workers aged 16 and over who take public transportation to work in Altadena (computed in code from ACS table B08301)", "geography": "Altadena Census place" }, "acs.commute.walk_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 0.7, "display": "0.7", "unit": "percent of workers", "label": "Share of workers aged 16 and over who walk to work in Altadena (computed in code from ACS table B08301)", "geography": "Altadena Census place" }, "acs.commute.home_share": { "source_layer": "census_acs5", "source_name": "U.S. Census Bureau American Community Survey 5-year", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "n": null, "as_of": "2024-12-31", "window": "2020-2024", "value": 25.4, "display": "25.4", "unit": "percent of workers", "label": "Share of workers aged 16 and over who work from home in Altadena (computed in code from ACS table B08301)", "geography": "Altadena Census place" }, "haz.fhsz.very_high_pct": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": 27.8, "display": "27.8", "unit": "percent of sampled boundary area", "label": "Share of Altadena inside a CAL FIRE Very High Fire Hazard Severity Zone (grid sample of 920 points on a 40 by 40 grid)", "geography": "Altadena Census place boundary" }, "haz.fhsz.high_pct": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": 0, "display": "0.0", "unit": "percent of sampled boundary area", "label": "Share of Altadena inside a CAL FIRE High Fire Hazard Severity Zone (grid sample of 920 points on a 40 by 40 grid)", "geography": "Altadena Census place boundary" }, "haz.fhsz.moderate_pct": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": 0, "display": "0.0", "unit": "percent of sampled boundary area", "label": "Share of Altadena inside a CAL FIRE Moderate Fire Hazard Severity Zone (grid sample of 920 points on a 40 by 40 grid)", "geography": "Altadena Census place boundary" }, "haz.fhsz.federal_pct": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": 6.2, "display": "6.2", "unit": "percent of sampled boundary area", "label": "Share of Altadena inside a Federal Responsibility Area (CAL FIRE assigns no hazard class there) (grid sample of 920 points on a 40 by 40 grid)", "geography": "Altadena Census place boundary" }, "haz.fhsz.none_pct": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": 66, "display": "66.0", "unit": "percent of sampled boundary area", "label": "Share of Altadena outside every mapped CAL FIRE Fire Hazard Severity Zone polygon (grid sample of 920 points on a 40 by 40 grid)", "geography": "Altadena Census place boundary" }, "haz.fhsz.responsibility_areas": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": [ "FRA", "LRA", "SRA" ], "display": "FRA, LRA, SRA", "unit": null, "label": "Responsibility areas (SRA state, LRA local, FRA federal) of the mapped zones inside Altadena", "geography": "Altadena Census place boundary" }, "haz.fhsz.map_vintage": { "source_layer": "calfire_fhsz", "source_name": "CAL FIRE Fire Hazard Severity Zones", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "n": null, "as_of": "2026-10-21", "window": "maps adopted SRA 2007, LRA 2011", "value": "SRA 2007, LRA 2011", "display": "SRA 2007, LRA 2011", "unit": null, "label": "Map vintages named in the CAL FIRE layer titles: State Responsibility Areas (2007), Local Responsibility Areas (2011)", "geography": "Altadena Census place boundary" }, "haz.flood.sfha_pct": { "source_layer": "fema_nfhl", "source_name": "FEMA National Flood Hazard Layer", "license": "US Government work (17 U.S.C. 105); 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Elementary", "Pasadena High", "Norma Coombs Elementary" ], "display": "Odyssey Charter, John Muir High, Marshall Fundamental, Longfellow (Henry W.) Elementary, Pasadena High, Norma Coombs Elementary", "unit": null, "label": "Names of up to 6 of those nearby public schools, nearest first (no ratings or quality information)", "geography": "Altadena Census place boundary" }, "elev.min_ft": { "source_layer": "usgs_epqs", "source_name": "USGS 3DEP Elevation Point Query Service", "license": "US Government work, U.S. Public Domain", "n": null, "as_of": "2026-10-21", "window": "elevation sampled 2026-10-21", "value": 947, "display": "947", "unit": "feet", "label": "Lowest sampled ground elevation above sea level (27 grid points inside Altadena)", "geography": "Altadena Census place boundary" }, "elev.max_ft": { "source_layer": "usgs_epqs", "source_name": "USGS 3DEP Elevation Point Query Service", "license": "US Government work, U.S. Public Domain", "n": null, "as_of": "2026-10-21", "window": "elevation sampled 2026-10-21", "value": 1990, "display": "1,990", "unit": "feet", "label": "Highest sampled ground elevation above sea level (27 grid points inside Altadena)", "geography": "Altadena Census place boundary" }, "elev.median_ft": { "source_layer": "usgs_epqs", "source_name": "USGS 3DEP Elevation Point Query Service", "license": "US Government work, U.S. Public Domain", "n": null, "as_of": "2026-10-21", "window": "elevation sampled 2026-10-21", "value": 1273, "display": "1,273", "unit": "feet", "label": "Median sampled ground elevation above sea level (27 grid points inside Altadena)", "geography": "Altadena Census place boundary" }, "elev.range_ft": { "source_layer": "usgs_epqs", "source_name": "USGS 3DEP Elevation Point Query Service", "license": "US Government work, U.S. Public Domain", "n": null, "as_of": "2026-10-21", "window": "elevation sampled 2026-10-21", "value": 1043, "display": "1,043", "unit": "feet", "label": "Difference between highest and lowest sampled elevation (27 grid points inside Altadena)", "geography": "Altadena Census place boundary" }, "transit.buffer_miles": { "source_layer": "lametro_gtfs", "source_name": "LA Metro GTFS schedule data", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "n": null, "as_of": "2026-10-22", "window": "2026-10-22", "value": 0.5, "display": "0.5", "unit": "miles", "label": "Distance from the boundary line within which nearby stops and stations are counted: 805 meters, which is 0.5 mile", "geography": "Altadena Census place boundary" }, "transit.bus_stops_count": { "source_layer": "lametro_gtfs", "source_name": "LA Metro GTFS schedule data", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "n": null, "as_of": "2026-10-22", "window": "2026-10-22", "value": 62, "display": "62", "unit": "Metro bus stops", "label": "LA Metro bus stops located inside the boundary of Altadena (zero when the feed places none there)", "geography": "Altadena Census place boundary" }, "transit.bus_routes_count": { "source_layer": "lametro_gtfs", "source_name": "LA Metro GTFS schedule data", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "n": null, "as_of": "2026-10-22", "window": "2026-10-22", "value": 3, "display": "3", "unit": "Metro bus routes", "label": "Distinct LA Metro bus routes with scheduled service at the stops inside the boundary", "geography": "Altadena Census place boundary" }, "transit.bus_stops_near_count": { "source_layer": "lametro_gtfs", "source_name": "LA Metro GTFS schedule data", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "n": null, "as_of": "2026-10-22", "window": "2026-10-22", "value": 88, "display": "88", "unit": "Metro bus stops", "label": "LA Metro bus stops inside the boundary of Altadena or within about 0.5 mile of it", "geography": "Altadena Census place boundary" }, "transit.bus_routes_near_count": { "source_layer": "lametro_gtfs", "source_name": "LA Metro GTFS schedule data", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "n": null, "as_of": "2026-10-22", "window": "2026-10-22", "value": 3, "display": "3", "unit": "Metro bus routes", "label": "Distinct LA Metro bus routes with scheduled service at those stops", "geography": "Altadena Census place boundary" } }, "citation_sentences": [ { "id": "c.land", "text": "Altadena covers 8.5 square miles of land (U.S. Census Bureau TIGERweb, 2020).", "fact_ids": [ "geo.land_sq_mi" ] }, { "id": "c.value", "text": "The median value of owner-occupied homes in Altadena is $1,120,000 (U.S. Census Bureau American Community Survey 5-year, 2020-2024).", "fact_ids": [ "acs.housing.median_value" ] }, { "id": "c.rent", "text": "The median gross rent in Altadena is $2,355 per month (U.S. Census Bureau American Community Survey 5-year, 2020-2024).", "fact_ids": [ "acs.housing.median_rent" ] }, { "id": "c.parks", "text": "OpenStreetMap lists 4 named parks inside the boundary of Altadena (OpenStreetMap, 2026-10-21).", "fact_ids": [ "poi.parks_count" ] }, { "id": "c.libs", "text": "OpenStreetMap lists 1 named library inside the boundary of Altadena (OpenStreetMap, 2026-10-21).", "fact_ids": [ "poi.libraries_count" ] } ], "modules": { "summary": { "text": "Located in Los Angeles County, California, Altadena is a Census designated place, and its housing figures describe the Altadena Census place. Renters pay a median gross rent of $2,355 per month.\n\nSource: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024.", "sentences": [ { "s": "Located in Los Angeles County, California, Altadena is a Census designated place, and its housing figures describe the Altadena Census place.", "src": [ "acs.housing.median_rent", "geo.county" ], "role": "scope" }, { "s": "Renters pay a median gross rent of $2,355 per month.", "src": [ "acs.housing.median_rent" ] }, { "s": "Source: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024.", "src": [ "acs.housing.median_rent" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v13", "cache_key": "c6f0120a17e0b3ce59906040a8b93c68204ad76153c20c891385d9798badb94c" }, "housing_zoning": { "text": "Every housing figure in this section describes the Altadena Census place in Los Angeles County, California. 76.9 percent of occupied housing units are owner-occupied and 23.1 percent are renter-occupied, so rentals are the smaller share of occupied homes. Median gross rent runs $2,355 per month. The median value of owner-occupied homes is $1,120,000; owners reported it, so it is an estimate and not a sale price. The median home was built in 1946. Any build or accessory dwelling unit plan needs verification with the city or county planning department.\n\nSource: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024.", "sentences": [ { "s": "Every housing figure in this section describes the Altadena Census place in Los Angeles County, California.", "src": [ "acs.housing.owner_share", "acs.housing.renter_share", "acs.housing.median_rent", "acs.housing.median_value", "acs.housing.median_year_built", "geo.county" ], "role": "scope" }, { "s": "76.9 percent of occupied housing units are owner-occupied and 23.1 percent are renter-occupied, so rentals are the smaller share of occupied homes.", "src": [ "acs.housing.owner_share", "acs.housing.renter_share" ] }, { "s": "Median gross rent runs $2,355 per month.", "src": [ "acs.housing.median_rent" ] }, { "s": "The median value of owner-occupied homes is $1,120,000; owners reported it, so it is an estimate and not a sale price.", "src": [ "acs.housing.median_value" ] }, { "s": "The median home was built in 1946.", "src": [ "acs.housing.median_year_built" ] }, { "s": "Any build or accessory dwelling unit plan needs verification with the city or county planning department.", "src": [ "acs.housing.median_year_built" ] }, { "s": "Source: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024.", "src": [ "acs.housing.owner_share", "acs.housing.renter_share", "acs.housing.median_rent", "acs.housing.median_value", "acs.housing.median_year_built" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v8", "cache_key": "8f7faa2db3bda6de6e262fd8ddb625354035b001c40b454fd41b560eb953ae3d" }, "hazards": { "text": "Altadena hazard figures cover the Census place boundary in Los Angeles County, California and are grid-sample shares of the mapped layers, not forecasts. CAL FIRE maps put 27.8 percent of the sampled area in a Very High zone, and 0.0 percent is in each of the High and Moderate zones. FEMA maps 0.0 percent of the sampled area as a Special Flood Hazard Area.\n\nSources: CAL FIRE Fire Hazard Severity Zones, maps adopted SRA 2007, LRA 2011; NFHL data retrieved 2026-10-21 data from FEMA National Flood Hazard Layer.", "sentences": [ { "s": "Altadena hazard figures cover the Census place boundary in Los Angeles County, California and are grid-sample shares of the mapped layers, not forecasts.", "src": [ "haz.fhsz.very_high_pct", "haz.fhsz.high_pct", "haz.fhsz.moderate_pct", "haz.flood.sfha_pct", "geo.county" ], "role": "scope" }, { "s": "CAL FIRE maps put 27.8 percent of the sampled area in a Very High zone, and 0.0 percent is in each of the High and Moderate zones.", "src": [ "haz.fhsz.very_high_pct", "haz.fhsz.high_pct", "haz.fhsz.moderate_pct" ] }, { "s": "FEMA maps 0.0 percent of the sampled area as a Special Flood Hazard Area.", "src": [ "haz.flood.sfha_pct" ] }, { "s": "Source: CAL FIRE Fire Hazard Severity Zones, maps adopted SRA 2007, LRA 2011.", "src": [ "haz.fhsz.very_high_pct", "haz.fhsz.high_pct", "haz.fhsz.moderate_pct" ], "role": "sources" }, { "s": "Source: NFHL data retrieved 2026-10-21 data from FEMA National Flood Hazard Layer.", "src": [ "haz.flood.sfha_pct" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v4", "cache_key": "df247c41a29f3e03adcf9644a1736289148a464623d9d6c764a87378c0e38f53" }, "schools": { "text": "The public schools below are the locations NCES places inside the Altadena Census place boundary in Los Angeles County, California. 5 public school locations are listed. Examples are Altadena Elementary. NCES assigns 2 school district identifiers to them. NCES also lists 11 public school locations outside the boundary but within one mile, including Odyssey Charter. The list shows where schools are located, not which school serves an address; verify attendance boundaries with the school district.\n\nSource: NCES EDGE public school locations, data for school year 2024-2025.", "sentences": [ { "s": "The public schools below are the locations NCES places inside the Altadena Census place boundary in Los Angeles County, California.", "src": [ "school.count", "geo.county" ], "role": "scope" }, { "s": "5 public school locations are listed.", "src": [ "school.count" ] }, { "s": "Examples are Altadena Elementary.", "src": [ "school.names_listed" ] }, { "s": "NCES assigns 2 school district identifiers to them.", "src": [ "school.district_ids" ] }, { "s": "NCES also lists 11 public school locations outside the boundary but within one mile, including Odyssey Charter.", "src": [ "school.near_count", "school.near_names_listed" ] }, { "s": "The list shows where schools are located, not which school serves an address; verify attendance boundaries with the school district.", "src": [ "school.count" ] }, { "s": "Source: NCES EDGE public school locations, data for school year 2024-2025.", "src": [ "school.count", "school.names_listed", "school.district_ids", "school.near_count", "school.near_names_listed" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v6", "cache_key": "b1b8f50e7f2f30594e5bfb4b72d1cc7b4be16507d2ae53744d4315cc6c828947" }, "transit": { "text": "LA Metro stop counts for Altadena use stop coordinates measured against the Altadena Census place boundary in Los Angeles County, California. LA Metro lists 62 bus stops inside the boundary with scheduled service on 3 routes. Counting stops within 0.5 mile of the boundary too, the totals are 88 bus stops on 3 routes. Counts show stop locations only, not service frequency or travel times, and cover LA Metro alone.\n\nSource: LA Metro GTFS schedule data, 2026-10-22.", "sentences": [ { "s": "LA Metro stop counts for Altadena use stop coordinates measured against the Altadena Census place boundary in Los Angeles County, California.", "src": [ "transit.bus_stops_count", "transit.bus_routes_count", "transit.bus_stops_near_count", "transit.bus_routes_near_count", "transit.buffer_miles", "geo.county" ], "role": "scope" }, { "s": "LA Metro lists 62 bus stops inside the boundary with scheduled service on 3 routes.", "src": [ "transit.bus_stops_count", "transit.bus_routes_count" ] }, { "s": "Counting stops within 0.5 mile of the boundary too, the totals are 88 bus stops on 3 routes.", "src": [ "transit.bus_stops_near_count", "transit.bus_routes_near_count", "transit.buffer_miles" ] }, { "s": "Counts show stop locations only, not service frequency or travel times, and cover LA Metro alone.", "src": [ "transit.bus_stops_count" ] }, { "s": "Source: LA Metro GTFS schedule data, 2026-10-22.", "src": [ "transit.bus_stops_count", "transit.bus_routes_count", "transit.bus_stops_near_count", "transit.bus_routes_near_count", "transit.buffer_miles" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v1", "cache_key": "6bb1e32d034c8f7930f13ac91c938a1f5aa4d65559a91856361264acd1fd5aeb" }, "things_to_do": { "text": "OpenStreetMap maps 4 named parks inside the Altadena Census place boundary in Los Angeles County, California, including Charles S. Farnsworth Park, Charles White Park. OpenStreetMap lists 1 named library inside the Altadena Census place boundary: Altadena Public Library. OpenStreetMap maps 24 named trails inside or near the Altadena Census place boundary, including Altadena Crest Access Trail, Altadena Crest Trail. This list shows names only, not a ranking or a review.\n\nSource: OpenStreetMap, data for snapshot 2026-10-21.", "sentences": [ { "s": "OpenStreetMap maps 4 named parks inside the Altadena Census place boundary in Los Angeles County, California, including Charles S. Farnsworth Park, Charles White Park.", "src": [ "poi.parks_count", "poi.parks_listed", "geo.county" ] }, { "s": "OpenStreetMap lists 1 named library inside the Altadena Census place boundary: Altadena Public Library.", "src": [ "poi.libraries_count", "poi.libraries_listed" ] }, { "s": "OpenStreetMap maps 24 named trails inside or near the Altadena Census place boundary, including Altadena Crest Access Trail, Altadena Crest Trail.", "src": [ "poi.trails_count", "poi.trails_listed" ] }, { "s": "This list shows names only, not a ranking or a review.", "src": [ "poi.parks_count" ] }, { "s": "Source: OpenStreetMap, data for snapshot 2026-10-21.", "src": [ "poi.parks_count", "poi.parks_listed", "poi.libraries_count", "poi.libraries_listed", "poi.trails_count", "poi.trails_listed" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v9", "cache_key": "c73e803249fa511675c8700c5b90f05ed46aba6d1af9cacc7c744efff1d8aa76" }, "faq": { "text": "In the Altadena Census place, the median value of owner-occupied homes is $1,120,000. Owners reported this value in a survey, so it is an estimate and not a sale price or a listing price for any single home. The figure covers every owner-occupied home in that area. Altadena is in Los Angeles County. In the Altadena Census place boundary, 27.8 percent of the sampled area is in a CAL FIRE Very High Fire Hazard Severity Zone. The share comes from a grid sample of the boundary. It is a mapped share, not a forecast. NCES lists 11 public school locations outside the Altadena Census place boundary but within one mile of it. Nearest are Odyssey Charter, John Muir High and Marshall Fundamental. Verify attendance boundaries with the school district. NCES lists 5 public school locations in the Altadena Census place boundary. Examples are Altadena Elementary, Charles W. Eliot Middle and Mary W. Jackson STEAM Multilingual Magnet Elementary. The list shows where schools are located, not which school serves an address. Verify attendance boundaries with the school district. In the Altadena Census place, the median home was built in 1946. A median means half of the homes were built earlier and half later. The figure covers all housing structures in that area. These are survey and map estimates for the whole area, not figures for any single home. In the Altadena Census place, the median gross rent is $2,355 per month. The figure is a survey estimate for all rental homes in the area and not an asking price for any single rental. The figure covers every rental home in that area. In the Altadena Census place, 23.1 percent of occupied homes are renter-occupied, an estimated 3,489 homes. Both figures are survey estimates, so they are approximate and not exact counts. The figures cover every occupied home in that area. In the Altadena Census place, 62.3 percent of workers drive alone to work, 1.5 percent use public transportation and 25.4 percent work from home. These are survey estimates, so they are approximate and not exact counts. The figures cover every commuting worker in that area.\n\nSources: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024; CAL FIRE Fire Hazard Severity Zones, maps adopted SRA 2007, LRA 2011; NCES EDGE public school locations, data for school year 2024-2025.", "sentences": [ { "q": "What is the median value of owner-occupied homes in Altadena?", "s": "In the Altadena Census place, the median value of owner-occupied homes is $1,120,000. Owners reported this value in a survey, so it is an estimate and not a sale price or a listing price for any single home. The figure covers every owner-occupied home in that area. Altadena is in Los Angeles County.", "src": [ "acs.housing.median_value", "geo.county" ] }, { "q": "What share of Altadena lies in a CAL FIRE Very High Fire Hazard Severity Zone?", "s": "In the Altadena Census place boundary, 27.8 percent of the sampled area is in a CAL FIRE Very High Fire Hazard Severity Zone. The share comes from a grid sample of the boundary. It is a mapped share, not a forecast.", "src": [ "haz.fhsz.very_high_pct", "haz.fhsz.map_vintage" ] }, { "q": "Which public schools are near Altadena?", "s": "NCES lists 11 public school locations outside the Altadena Census place boundary but within one mile of it. Nearest are Odyssey Charter, John Muir High and Marshall Fundamental. Verify attendance boundaries with the school district.", "src": [ "school.near_count", "school.near_names_listed" ] }, { "q": "Which public schools are located in Altadena?", "s": "NCES lists 5 public school locations in the Altadena Census place boundary. Examples are Altadena Elementary, Charles W. Eliot Middle and Mary W. Jackson STEAM Multilingual Magnet Elementary. The list shows where schools are located, not which school serves an address. Verify attendance boundaries with the school district.", "src": [ "school.count", "school.names_listed" ] }, { "q": "How old are the homes in Altadena?", "s": "In the Altadena Census place, the median home was built in 1946. A median means half of the homes were built earlier and half later. The figure covers all housing structures in that area. These are survey and map estimates for the whole area, not figures for any single home.", "src": [ "acs.housing.median_year_built" ] }, { "q": "What is the median gross rent in Altadena?", "s": "In the Altadena Census place, the median gross rent is $2,355 per month. The figure is a survey estimate for all rental homes in the area and not an asking price for any single rental. The figure covers every rental home in that area.", "src": [ "acs.housing.median_rent" ] }, { "q": "What share of occupied homes in Altadena are rented?", "s": "In the Altadena Census place, 23.1 percent of occupied homes are renter-occupied, an estimated 3,489 homes. Both figures are survey estimates, so they are approximate and not exact counts. The figures cover every occupied home in that area.", "src": [ "acs.housing.renter_share", "acs.housing.renter_count" ] }, { "q": "How do workers in Altadena get to work?", "s": "In the Altadena Census place, 62.3 percent of workers drive alone to work, 1.5 percent use public transportation and 25.4 percent work from home. These are survey estimates, so they are approximate and not exact counts. The figures cover every commuting worker in that area.", "src": [ "acs.commute.drive_alone_share", "acs.commute.transit_share", "acs.commute.home_share" ] }, { "q": "Sources", "s": "Source: U.S. Census Bureau American Community Survey 5-year; reference period 2020-2024.", "src": [ "acs.housing.median_value", "acs.housing.median_year_built", "acs.housing.median_rent", "acs.housing.renter_share", "acs.housing.renter_count", "acs.commute.drive_alone_share", "acs.commute.transit_share", "acs.commute.home_share" ], "role": "sources" }, { "q": "Sources", "s": "Source: CAL FIRE Fire Hazard Severity Zones, maps adopted SRA 2007, LRA 2011.", "src": [ "haz.fhsz.very_high_pct" ], "role": "sources" }, { "q": "Sources", "s": "Source: NCES EDGE public school locations, data for school year 2024-2025.", "src": [ "school.near_count", "school.near_names_listed", "school.count", "school.names_listed" ], "role": "sources" } ], "prompt_version": "writer.v1", "model": "code:det.v17", "cache_key": "d74402e6e31466cc3889773cccfc779416d83da57a9cbcf8ca848970ed1fbf95", "questions": [ "What is the median value of owner-occupied homes in Altadena?", "What share of Altadena lies in a CAL FIRE Very High Fire Hazard Severity Zone?", "Which public schools are near Altadena?", "Which public schools are located in Altadena?", "How old are the homes in Altadena?", "What is the median gross rent in Altadena?", "What share of occupied homes in Altadena are rented?", "How do workers in Altadena get to work?" ], "audience": { "What is the median value of owner-occupied homes in Altadena?": "buyer", "What share of Altadena lies in a CAL FIRE Very High Fire Hazard Severity Zone?": "buyer", "Which public schools are near Altadena?": "buyer", "Which public schools are located in Altadena?": "buyer", "How old are the homes in Altadena?": "buyer", "What is the median gross rent in Altadena?": "renter", "What share of occupied homes in Altadena are rented?": "renter", "How do workers in Altadena get to work?": "renter" } }, "quick_facts": [ { "fact_id": "geo.land_sq_mi", "label": "Land area inside Altadena" }, { "fact_id": "geo.geography_type", "label": "Census geography type that defines the boundary used for the statistics of Altadena" }, { "fact_id": "geo.county", "label": "County that contains the interior point of Altadena" }, { "fact_id": "geo.unincorporated_share_pct", "label": "Share of Altadena outside every incorporated city (grid sample of 920 points)" }, { "fact_id": "acs.pop_est", "label": "Estimated population of Altadena (ACS estimate; margin of error +/-2,203)" }, { "fact_id": "acs.hu_est", "label": "Estimated housing units in Altadena (ACS table B25001)" }, { "fact_id": "acs.housing.occupied", "label": "Estimated occupied housing units in Altadena (ACS table B25003)" }, { "fact_id": "acs.housing.owner_count", "label": "Estimated owner-occupied housing units in Altadena" }, { "fact_id": "acs.housing.renter_count", "label": "Estimated renter-occupied housing units in Altadena" }, { "fact_id": "acs.housing.owner_share", "label": "Share of occupied housing units that are owner-occupied in Altadena (computed in code from two ACS counts)" }, { "fact_id": "acs.housing.renter_share", "label": "Share of occupied housing units that are renter-occupied in Altadena (computed in code from two ACS counts)" }, { "fact_id": "acs.housing.median_year_built", "label": "Median year the housing structures in Altadena were built (ACS table B25035)" }, { "fact_id": "acs.housing.median_value", "label": "Median value of owner-occupied housing units in Altadena (ACS table B25077; owner-reported; margin of error +/-$29,753)" }, { "fact_id": "acs.housing.median_rent", "label": "Median gross rent in Altadena (ACS table B25064; margin of error +/-$174)" }, { "fact_id": "acs.commute.workers", "label": "Workers aged 16 and over who do not work from home, with a reported travel time (ACS table B08303), in Altadena" }, { "fact_id": "acs.commute.under20_share", "label": "Share of commuting workers with a one-way commute under 20 minutes in Altadena (computed in code from ACS B08303 bins)" }, { "fact_id": "acs.commute.20_44_share", "label": "Share of commuting workers with a one-way commute of 20 to 44 minutes in Altadena (computed in code from ACS B08303 bins)" }, { "fact_id": "acs.commute.45plus_share", "label": "Share of commuting workers with a one-way commute of 45 minutes or more in Altadena (computed in code from ACS B08303 bins)" }, { "fact_id": "acs.commute.drive_alone_share", "label": "Share of workers aged 16 and over who drive alone to work in Altadena (computed in code from ACS table B08301)" }, { "fact_id": "acs.commute.carpool_share", "label": "Share of workers aged 16 and over who carpool to work in Altadena (computed in code from ACS table B08301)" }, { "fact_id": "acs.commute.transit_share", "label": "Share of workers aged 16 and over who take public transportation to work in Altadena (computed in code from ACS table B08301)" }, { "fact_id": "acs.commute.walk_share", "label": "Share of workers aged 16 and over who walk to work in Altadena (computed in code from ACS table B08301)" }, { "fact_id": "acs.commute.home_share", "label": "Share of workers aged 16 and over who work from home in Altadena (computed in code from ACS table B08301)" }, { "fact_id": "elev.min_ft", "label": "Lowest sampled ground elevation above sea level (27 grid points inside Altadena)" }, { "fact_id": "elev.max_ft", "label": "Highest sampled ground elevation above sea level (27 grid points inside Altadena)" }, { "fact_id": "elev.median_ft", "label": "Median sampled ground elevation above sea level (27 grid points inside Altadena)" }, { "fact_id": "elev.range_ft", "label": "Difference between highest and lowest sampled elevation (27 grid points inside Altadena)" } ], "market_context_buy": { "audience": "buyer", "title": "Buying in Altadena: Census reference points", "status": "acs_reference_only", "source": "U.S. Census Bureau American Community Survey 5-year", "window": "2020-2024", "as_of": "2024-12-31", "geography": "Altadena Census place", "items": [ { "fact_id": "acs.housing.median_value", "label": "Median value of owner-occupied housing units in Altadena (ACS table B25077; owner-reported; margin of error +/-$29,753)", "display": "$1,120,000", "unit": "US dollars", "geography": "Altadena Census place" }, { "fact_id": "acs.housing.owner_share", "label": "Share of occupied housing units that are owner-occupied in Altadena (computed in code from two ACS counts)", "display": "76.9", "unit": "percent of occupied housing units", "geography": "Altadena Census place" }, { "fact_id": "acs.housing.owner_count", "label": "Estimated owner-occupied housing units in Altadena", "display": "11,603", "unit": "owner-occupied units", "geography": "Altadena Census place" }, { "fact_id": "acs.housing.median_year_built", "label": "Median year the housing structures in Altadena were built (ACS table B25035)", "display": "1946", "unit": "year", "geography": "Altadena Census place" }, { "fact_id": "acs.hu_est", "label": "Estimated housing units in Altadena (ACS table B25001)", "display": "15,815", "unit": "housing units", "geography": "Altadena Census place" } ], "sentences": [ { "s": "Altadena figures in this section describe the Altadena Census place.", "src": [ "acs.housing.median_value", "acs.housing.owner_share", "acs.housing.owner_count", "acs.housing.median_year_built", "acs.hu_est" ], "role": "scope" }, { "s": "The median value of owner-occupied homes is $1,120,000. Owners report this value, so it is an estimate and not a sale price.", "src": [ "acs.housing.median_value" ] }, { "s": "76.9 percent of occupied homes are owner-occupied, an estimated 11,603 homes.", "src": [ "acs.housing.owner_share", "acs.housing.owner_count" ] }, { "s": "The median home was built in 1946.", "src": [ "acs.housing.median_year_built" ] }, { "s": "The survey estimates 15,815 housing units.", "src": [ "acs.hu_est" ] }, { "s": "Source: U.S. Census Bureau American Community Survey 5-year, 2020-2024.", "src": [ "acs.housing.median_value", "acs.housing.owner_share", "acs.housing.owner_count", "acs.housing.median_year_built", "acs.hu_est" ], "role": "sources" } ], "text": "Altadena figures in this section describe the Altadena Census place. The median value of owner-occupied homes is $1,120,000. Owners report this value, so it is an estimate and not a sale price. 76.9 percent of occupied homes are owner-occupied, an estimated 11,603 homes. The median home was built in 1946. The survey estimates 15,815 housing units.\n\nSource: U.S. Census Bureau American Community Survey 5-year, 2020-2024.", "listing_note": "Active-listing and sold-price statistics are not shown because the MLS feed is not approved yet; these are survey reference points, not market prices." }, "market_context_rent": { "audience": "renter", "title": "Renting in Altadena: Census reference points", "status": "acs_reference_only", "source": "U.S. Census Bureau American Community Survey 5-year", "window": "2020-2024", "as_of": "2024-12-31", "geography": "Altadena Census place", "items": [ { "fact_id": "acs.housing.median_rent", "label": "Median gross rent in Altadena (ACS table B25064; margin of error +/-$174)", "display": "$2,355", "unit": "US dollars per month", "geography": "Altadena Census place" }, { "fact_id": "acs.housing.renter_share", "label": "Share of occupied housing units that are renter-occupied in Altadena (computed in code from two ACS counts)", "display": "23.1", "unit": "percent of occupied housing units", "geography": "Altadena Census place" }, { "fact_id": "acs.housing.renter_count", "label": "Estimated renter-occupied housing units in Altadena", "display": "3,489", "unit": "renter-occupied units", "geography": "Altadena Census place" }, { "fact_id": "acs.commute.transit_share", "label": "Share of workers aged 16 and over who take public transportation to work in Altadena (computed in code from ACS table B08301)", "display": "1.5", "unit": "percent of workers", "geography": "Altadena Census place" }, { "fact_id": "acs.commute.drive_alone_share", "label": "Share of workers aged 16 and over who drive alone to work in Altadena (computed in code from ACS table B08301)", "display": "62.3", "unit": "percent of workers", "geography": "Altadena Census place" } ], "sentences": [ { "s": "Altadena figures in this section describe the Altadena Census place.", "src": [ "acs.housing.median_rent", "acs.housing.renter_share", "acs.housing.renter_count", "acs.commute.transit_share", "acs.commute.drive_alone_share" ], "role": "scope" }, { "s": "The median gross rent is $2,355 per month.", "src": [ "acs.housing.median_rent" ] }, { "s": "23.1 percent of occupied homes are renter-occupied, an estimated 3,489 homes.", "src": [ "acs.housing.renter_share", "acs.housing.renter_count" ] }, { "s": "1.5 percent of workers take public transportation to work and 62.3 percent drive alone.", "src": [ "acs.commute.transit_share", "acs.commute.drive_alone_share" ] }, { "s": "Source: U.S. Census Bureau American Community Survey 5-year, 2020-2024.", "src": [ "acs.housing.median_rent", "acs.housing.renter_share", "acs.housing.renter_count", "acs.commute.transit_share", "acs.commute.drive_alone_share" ], "role": "sources" } ], "text": "Altadena figures in this section describe the Altadena Census place. The median gross rent is $2,355 per month. 23.1 percent of occupied homes are renter-occupied, an estimated 3,489 homes. 1.5 percent of workers take public transportation to work and 62.3 percent drive alone.\n\nSource: U.S. Census Bureau American Community Survey 5-year, 2020-2024.", "listing_note": "Active-listing and sold-price statistics are not shown because the MLS feed is not approved yet; these are survey reference points, not market prices." }, "own_vs_rent_inputs": { "status": "inputs_only", "as_of": "2026-10-22", "formula_version": 1, "note": "Inputs for a client-side calculator and a static worked example. The model computes nothing; code does. No result is shown as advice.", "buyer": { "home_price": { "fact_id": "acs.housing.median_value", "value": 1120000, "display": "$1,120,000", "unit": "US dollars", "basis": "ACS median value of owner-occupied homes (survey estimate); editable", "geography": "Altadena Census place", "editable": true }, "down_payment_pct": { "value": 20, "unit": "percent", "basis": "editable default, not a recommendation", "editable": true }, "term_years": { "value": 30, "unit": "years", "basis": "editable default", "editable": true }, "interest_rate_pct": { "value": null, "unit": "percent per year", "basis": "enter a current published rate; no licensed rate source is wired", "editable": true }, "property_tax_rate_pct": { "value": 1, "unit": "percent of assessed value per year", "basis": "California base rate under Cal. Const. art. XIII A sec. 1; local voter-approved and direct assessments are extra and not included", "editable": true }, "insurance_annual": { "value": null, "unit": "US dollars per year", "basis": "user quote; no figure is bundled because insurance cost varies by property", "editable": true }, "hoa_monthly": { "value": null, "unit": "US dollars per month", "basis": "from the listing when one is chosen", "editable": true } }, "renter": { "monthly_rent": { "fact_id": "acs.housing.median_rent", "value": 2355, "display": "$2,355", "unit": "US dollars per month", "basis": "ACS median gross rent (survey estimate); editable", "geography": "Altadena Census place", "editable": true }, "renters_insurance_monthly": { "value": null, "unit": "US dollars per month", "basis": "user quote; none bundled", "editable": true } }, "formulas": { "loan_amount": "home_price * (1 - down_payment_pct / 100)", "monthly_principal_interest": "loan_amount * r / (1 - (1 + r) ^ -n), r = interest_rate_pct / 1200, n = term_years * 12", "monthly_property_tax": "home_price * property_tax_rate_pct / 1200", "monthly_owner_cost": "monthly_principal_interest + monthly_property_tax + insurance_annual / 12 + hoa_monthly", "monthly_renter_cost": "monthly_rent + renters_insurance_monthly" } }, "nearby": [ { "slug": "la-canada-flintridge", "name": "La Canada Flintridge", "adjacency": "within_500m", "path": "/communities/la-canada-flintridge/", "comparators": [ { "fact_id": "acs.housing.median_value", "label": "Median value of owner-occupied homes", "this": { "display": "$1,120,000", "geography": "Altadena Census place" }, "other": { "display": "$2,000,001", "geography": "La Canada Flintridge Census place" } }, { "fact_id": "acs.housing.median_rent", "label": "Median gross rent per month", "this": { "display": "$2,355", "geography": "Altadena Census place" }, "other": { "display": "$2,873", "geography": "La Canada Flintridge Census place" } }, { "fact_id": "geo.land_sq_mi", "label": "Land area in square miles", "this": { "display": "8.5", "geography": "Altadena Census place boundary" }, "other": { "display": "8.6", "geography": "La Canada Flintridge Census place boundary" } }, { "fact_id": "elev.median_ft", "label": "Median sampled ground elevation in feet", "this": { "display": "1,273", "geography": "Altadena Census place boundary" }, "other": { "display": "1,456", "geography": "La Canada Flintridge Census place boundary" } } ] }, { "slug": "pasadena", "name": "Pasadena", "adjacency": "touches", "path": "/communities/pasadena/", "comparators": [ { "fact_id": "acs.housing.median_value", "label": "Median value of owner-occupied homes", "this": { "display": "$1,120,000", "geography": "Altadena Census place" }, "other": { "display": "$1,093,300", "geography": "Pasadena Census place" } }, { "fact_id": "acs.housing.median_rent", "label": "Median gross rent per month", "this": { "display": "$2,355", "geography": "Altadena Census place" }, "other": { "display": "$2,265", "geography": "Pasadena Census place" } }, { "fact_id": "geo.land_sq_mi", "label": "Land area in square miles", "this": { "display": "8.5", "geography": "Altadena Census place boundary" }, "other": { "display": "23.0", "geography": "Pasadena Census place boundary" } }, { "fact_id": "elev.median_ft", "label": "Median sampled ground elevation in feet", "this": { "display": "1,273", "geography": "Altadena Census place boundary" }, "other": { "display": "848", "geography": "Pasadena Census place boundary" } } ] } ], "local_note": null, "children": null, "quick_box": { "facts": [ { "id": "acs.housing.median_value", "label": "Median home value", "value": "$1,120,000", "source": "Census ACS 5-year, 2020-2024", "as_of": "2024-12-31" }, { "id": "acs.housing.median_rent", "label": "Median rent", "value": "$2,355/mo", "source": "Census ACS 5-year, 2020-2024", "as_of": "2024-12-31" }, { "id": "acs.hu_est", "label": "Homes", "value": "15,815", "source": "Census ACS 5-year, 2020-2024", "as_of": "2024-12-31" }, { "id": "acs.housing.owner_share", "label": "Owner-occupied", "value": "76.9%", "source": "Census ACS 5-year, 2020-2024", "as_of": "2024-12-31" }, { "id": "acs.housing.median_year_built", "label": "Median year built", "value": "1946", "source": "Census ACS 5-year, 2020-2024", "as_of": "2024-12-31" }, { "id": "elev.median_ft", "label": "Median elevation", "value": "1,273 ft", "source": "USGS 3DEP, elevation sampled 2026-10-21", "as_of": "2026-10-21" }, { "id": "haz.fhsz.very_high_pct", "label": "In Very High fire zone", "value": "27.8%", "source": "CAL FIRE Fire Hazard Severity Zones, maps SRA 2007, LRA 2011", "as_of": "2026-10-21" }, { "id": "school.count", "label": "Public schools", "value": "5", "source": "NCES EDGE public school locations, school year 2024-2025", "as_of": "2026-10-21" } ] } }, "sources": [ { "layer": "tigerweb_place", "license": "US Government work (public domain, 17 U.S.C. 105); credit U.S. Census Bureau", "as_of": "2026-10-21" }, { "layer": "osm_overpass", "license": "ODbL 1.0; credit (c) OpenStreetMap contributors", "as_of": "2026-10-21" }, { "layer": "census_acs5", "license": "US Government work (public domain); Census Bureau Data API terms: attribution notice required", "as_of": "2026-10-21" }, { "layer": "calfire_fhsz", "license": "No restrictions on distribution; cite California Department of Forestry and Fire Protection as the original source", "as_of": "2026-10-21" }, { "layer": "fema_nfhl", "license": "US Government work (17 U.S.C. 105); FEMA.gov reuse statement", "as_of": "2026-10-21" }, { "layer": "nces_edge", "license": "US Government work, public domain (IES permission-to-replicate statement)", "as_of": "2026-10-21" }, { "layer": "usgs_epqs", "license": "US Government work, U.S. Public Domain", "as_of": "2026-10-21" }, { "layer": "lametro_gtfs", "license": "LA Metro Open Data Terms and Conditions; credit LA Metro", "as_of": "2026-10-22" } ], "entities": [ "Altadena", "Los Angeles County", "California", "Charles S. Farnsworth Park", "Charles White Park", "Loma Alta Park", "Mount Lowe Park", "Altadena Public Library", "Altadena Crest Access Trail", "Altadena Crest Trail", "Altadena Crest Trail Connector", "Camp Huntington Trail", "Chaney Trail", "El Prieto Trail", "Altadena Elementary", "Charles W. Eliot Middle", "Mary W. Jackson STEAM Multilingual Magnet Elementary", "OCS - South", "Webster Elementary", "Odyssey Charter", "John Muir High", "Marshall Fundamental", "Longfellow (Henry W.) Elementary", "Pasadena High", "Norma Coombs Elementary" ], "content_hash": "202ced0f7c28f99657f9494b5303e3500e003fce43dec5a6dfacf1817bff5088" }, "compliance": { "dre_line": "Aubree Chavarriga, REALTOR(R) | CalDRE #02232602 | Trevino Properties, Inc. | DRE #01976015 | 2600 Foothill Blvd. Ste. 302, La Crescenta, CA 91214", "eho_statement": "Equal Housing Opportunity. We pledge to provide equal housing opportunity to all persons without regard to race, color, religion, sex, disability, familial status or national origin.", "ai_disclosure": "Content assisted by AI from structured data and reviewed per our editorial policy." }, "live": {} }