---
entity_id: city:us:geonames:5323525
entity_type: city
name: Altadena
country_code: US
country: United States
slug: altadena
canonical_url: https://immigrationdb.com/cities/us/altadena/
json_url: https://immigrationdb.com/data/cities/us/altadena.json
markdown_url: https://immigrationdb.com/data/cities/us/altadena.md
mcp_uri: immigrationdb://city/us/altadena
snapshot_id: approved-static-d7ed373c115d60d0
generated_at: 2026-09-12
last_verified: 2026-09-11
fact_count: 23
language_location_count: 0
employment_location_count: 0
city_intent_block_count: 0
usefulness_tier: useful
indexable: true
metric_dictionary_url: https://immigrationdb.com/data/metrics.json
license_url: https://immigrationdb.com/about/copyright/
citation_schema: immigrationdb-citation-v1
citation_canonical_url: https://immigrationdb.com/cities/us/altadena/
citation_title: "Altadena, United States: rent, salary, jobs"
citation_author: ImmigrationDB
citation_publisher: ImmigrationDB
citation_snapshot_id: approved-static-d7ed373c115d60d0
citation_version: approved-static-d7ed373c115d60d0
citation_retrieval_date: 2026-09-12
citation_build_date: 2026-09-12
citation_license_url: https://creativecommons.org/licenses/by/4.0/
---

# Altadena

Altadena is one of the cities recorded in the United States. The population of Altadena totalled 43,037 at the end of 2020. Altadena's unemployment stood at 6.39% at the end of 2024. Foreign residents numbered 9,463 at the end of 2024.

## Answers

Deterministic answers rendered from this page's published values. The JSON twin carries the machine-readable answer objects.

### How many people live in Altadena?

The published population was 43,037 people in April 2020.

- City-scope resident count. Density, foreign-resident counts and the country-wide figure are separate rows in the table below.
- Value: 43,037 people · Period: April 2020
- Claims: claim-4657222fcf9b
### Is the air quality good in Altadena?

The annual PM2.5 mean is about 11.8 µg/m³ (2024) — above the WHO 2021 guideline of 5 µg/m³ but within the EU limit of 25 µg/m³.

- Annual mean at the measuring site(s) serving the city; current-day readings differ.
- Value: 11.8 µg/m³ · Period: 2024
- Claims: claim-d04b3038bc61
### What is the typical salary in Altadena?

The median gross salary is about 4,405 EUR/month (ACS 2020-2024 5-year).

- City-scope median, gross, before tax and social contributions.
- Value: 4,405 EUR/month · Period: ACS 2020-2024 5-year
- Claims: claim-c7211fa7b184
### What is the unemployment rate in Altadena?

The unemployment rate is about 6.4 % (2024).

- Value: 6.4 % · Period: 2024
- Claims: claim-518b2ea95b3d
## Mobility

Altadena's nearest airport was BUR, 21 km away and offered 12 direct destinations.

## Population

Altadena covered an area of 21.9 km² at the end of 2025. Altadena's population density measured 1,902.2 people per km² at the end of 2024.

## Climate

Annual PM2.5 levels for Altadena stood at 11.8 µg/m³ at the end of 2024. Monthly mean temperature moved from 13.4°C in January to 24.2°C in July.

## Facts

| Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Foreign residents | `foreign_population_total` | 9,463 people | city | 2024-12-31 | 2026-08-03 | stale | verified | [1] |
| Population (built-up area) | `g01_population_total` | 41,705 people | city | 2020-12-31 | 2026-08-07 | stale | verified | [2] |
| Population | `population_total` | 43,037 people | city | 2020-12-31 | 2026-08-05 | stale | verified | [3] |
| Median monthly rent | `rent_median_city_eur_month` | 2,032 EUR/month | city | 2024-12-31 | 2026-09-11 | stale | supplemental | [4] |
| Median gross salary | `salary_median_gross_city_eur_month` | 4,405 EUR/month | city | 2024-12-31 | 2026-09-11 | stale | supplemental | [5] |
| Unemployment rate | `unemployment_total_percent` | 6.39 % | city | 2024-12-31 | 2026-08-03 | stale | verified | [1] |
| PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 11.82 µg/m³ | nearest_station | 2024-12-31 | 2026-08-05 | stale | verified | [6] |
| Average daytime high by month | `climate_monthly_high_c` | Jan 19.4 · Feb 19.3 · Mar 20.8 · Apr 22.6 · May 24.2 · Jun 26.8 · Jul 30.4 · Aug 31.6 · Sep 30.3 · Oct 26.3 · Nov 22.5 · Dec 18.9 °C | nearest_station | 1991-12-31 | 2026-08-05 | stale | verified | [7] |
| Average night-time low by month | `climate_monthly_low_c` | Jan 7.4 · Feb 8 · Mar 9.5 · Apr 11 · May 13.7 · Jun 15.5 · Jul 18 · Aug 18.3 · Sep 17.2 · Oct 14.1 · Nov 9.5 · Dec 6.8 °C | nearest_station | 1991-12-31 | 2026-08-05 | stale | verified | [8] |
| Average temperature by month | `climate_monthly_mean_c` | Jan 13.4 · Feb 13.7 · Mar 15.1 · Apr 16.8 · May 18.9 · Jun 21.2 · Jul 24.2 · Aug 25 · Sep 23.7 · Oct 20.2 · Nov 16 · Dec 12.8 °C | nearest_station | 1991-12-31 | 2026-08-05 | stale | verified | [9] |
| Average precipitation by month | `climate_monthly_precip_mm` | Jan 75.4 · Feb 100.3 · Mar 61.6 · Apr 18.9 · May 7.4 · Jun 2.3 · Jul 0.3 · Aug 0.2 · Sep 2.8 · Oct 15.4 · Nov 17.5 · Dec 51.3 mm | nearest_station | 1991-12-31 | 2026-08-05 | stale | verified | [10] |
| G04 Air Quality Pm25 Max Ug M3 | `g04_air_quality_pm25_max_ug_m3` | 117.2 µg/m³ | nearest_station | 2024-12-31 | 2026-08-07 | stale | verified | [6] |
| G04 Air Quality Pm25 Mean Annual Ug M3 | `g04_air_quality_pm25_mean_annual_ug_m3` | 11.82 µg/m³ | nearest_station | 2024-12-31 | 2026-08-07 | stale | verified | [6] |
| G11 Annual Precipitation Mm | `g11_annual_precipitation_mm` | 353.4 mm | nearest_station | 1991-12-31 | 2026-08-07 | stale | verified | [10] |
| G11 Max Temp C Jul | `g11_max_temp_c_jul` | 30.4 °C | nearest_station | 1991-12-31 | 2026-08-07 | stale | verified | [7] |
| Average annual temperature | `g11_mean_annual_temp_c` | 18.4 °C | nearest_station | 1991-12-31 | 2026-08-07 | stale | verified | [9] |
| G11 Min Temp C Jan | `g11_min_temp_c_jan` | 7.4 °C | nearest_station | 1991-12-31 | 2026-08-07 | stale | verified | [8] |
| City area | `city_area_km2` | 21.92 km² | city | 2025-12-31 | 2026-08-03 | aging | verified | [11] |
| Foreign-resident share | `foreign_population_share_percent` | 22.69 % | city | 2024-12-31 | 2026-08-03 | stale | verified | [1] |
| Population density | `population_density_per_km2` | 1,902 people/km² | city | 2024-12-31 | 2026-08-03 | stale | verified | [1] |
| Airport Direct Destinations Count | `airport_direct_destinations_count` | 12 count | city | 2026-08-03 | 2026-08-03 | fresh | verified | [12] |
| Nearest Major Airport Distance Km | `nearest_major_airport_distance_km` | 21 km | city | 2026-08-03 | 2026-08-03 | fresh | verified | [13] |
| Nearest Major Airport Iata | `nearest_major_airport_iata` | BUR | city | 2026-08-03 | 2026-08-03 | fresh | verified | [13] |

Every row keeps the value, unit, geographic scope, observation date, verification date and the numbered source below. A missing metric means the city does not publish it; nothing is imputed.

## Language courses and integration

- [Adult Education and English Language Acquisition (AEFLA)](https://www.ed.gov/adult-programs) — State Language Course · U.S. Department of Education · English · checked 2026-08-10
- [USCIS English and citizenship class finder](https://my.uscis.gov/) — Civic Orientation · U.S. Citizenship and Immigration Services · English · checked 2026-08-10

These are country-level programmes, not proof of a course location in this city.

## Public employment service

- [American Job Centers](https://www.usa.gov/job-help) — Job Search

This is a country-level service, not proof of a physical office in this city.

## Healthcare access

Migrants can receive medical care in Altadena when the country-wide insurance or residence conditions are met. City capacity facts do not determine personal eligibility.

- Public healthcare access for foreign residents: no — [official source](https://www.healthcare.gov/immigrants/)

## Country-wide rules

Visa, benefit, tax and healthcare eligibility rules are published on the [United States country page](https://immigrationdb.com/countries/united-states/).

## Sources

1. Census Reporter (underlying U.S. Census ACS) — Official source — https://api.censusreporter.org/1.0/data/show/latest?table_ids=B05012%2CB23025&geo_ids=16000US0533482%2C16000US0600212%2C16000US0600618%2C16000US0601150%2C16000US0601192%2C16000US0601290%2C16000US0601358%2C16000US0601360%2C16000US0602210%2C16000US0602378
2. U.S. Census Bureau, American Community Survey — Official source — https://api.census.gov/data/2024/acs/acs5?get=NAME%2CB01003_001E%2CB01003_001M&for=place%3A%2A&in=state%3A%2A
3. California Department of Water Resources, Division of Integrated Regional Water Management (BIOS) — Official source — https://services2.arcgis.com/Uq9r85Potqm3MfRV/arcgis/rest/services/biosds3072_fpu/FeatureServer/0/query?where=1%3D1&outFields=GEOID20%2CNAME20%2CNAMELSAD20%2CPop20%2CDAC20&returnGeometry=false&f=json&resultRecordCount=3000
4. Census Reporter ACS 2020-2024 5-year, table B25064 (underlying U.S. Census Bureau ACS) — Community source — https://api.censusreporter.org/1.0/data/show/acs2024_5yr?table_ids=B25064&geo_ids=16000US0601290
5. Census Reporter ACS 2020-2024 5-year, table B20002 (underlying U.S. Census Bureau ACS) — Community source — https://api.censusreporter.org/1.0/data/show/acs2024_5yr?table_ids=B20002&geo_ids=16000US0601290
6. U.S. EPA Air Quality System / AirData — Official source — https://aqs.epa.gov/aqsweb/airdata/annual_conc_by_monitor_2024.zip
7. World Meteorological Organization / NOAA NCEI — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TMAX.csv
8. World Meteorological Organization / NOAA NCEI — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TMIN.csv
9. World Meteorological Organization / NOAA NCEI — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_TAVG.csv
10. World Meteorological Organization / NOAA NCEI — Official source — https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/data-composite-primary-parameters/wmo_normals_9120_PRCP.csv
11. U.S. Census Bureau (TIGERweb ArcGIS REST service) — Official source — https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/5/query?where=1%3D1&outFields=GEOID,NAME,STATE,PLACE,AREALAND,AREAWATER,INTPTLAT,INTPTLON,LSADC,FUNCSTAT,BASENAME&returnGeometry=false&f=json
12. OpenFlights — Official source — https://raw.githubusercontent.com/jpatokal/openflights/master/data/routes.dat
13. OurAirports — Official source — https://davidmegginson.github.io/ourairports-data/airports.csv

## Cite

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately.

### APA

ImmigrationDB. (2026, September 12). Altadena, United States: rent, salary, jobs [ImmigrationDB compilation; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0]. ImmigrationDB. https://immigrationdb.com/cities/us/altadena/ Retrieved 2026-09-12. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/

### BibTeX

```bibtex
@misc{immigrationdb_immigrationdb_altadena-united-states-rent-salary-jobs_0afda384f53e,
  author = {ImmigrationDB},
  title = {Altadena, United States: rent, salary, jobs},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-09-12},
  version = {approved-static-d7ed373c115d60d0},
  snapshot = {approved-static-d7ed373c115d60d0},
  url = {https://immigrationdb.com/cities/us/altadena/},
  note = {Retrieved 2026-09-12. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
```

### Markdown

[Altadena, United States: rent, salary, jobs](https://immigrationdb.com/cities/us/altadena/) — ImmigrationDB; ImmigrationDB; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0; retrieved 2026-09-12; built 2026-09-12.

- Citation schema: `immigrationdb-citation-v1`
- Canonical URL: https://immigrationdb.com/cities/us/altadena/
- Title: Altadena, United States: rent, salary, jobs
- Author: ImmigrationDB
- Publisher: ImmigrationDB
- Snapshot: `approved-static-d7ed373c115d60d0`
- Version: `approved-static-d7ed373c115d60d0`
- Retrieved: 2026-09-12
- Built: 2026-09-12
- Compilation license: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

## Data

- HTML: https://immigrationdb.com/cities/us/altadena/
- JSON: https://immigrationdb.com/data/cities/us/altadena.json
- Markdown: https://immigrationdb.com/data/cities/us/altadena.md
- MCP resource: immigrationdb://city/us/altadena
- Metric dictionary: https://immigrationdb.com/data/metrics.json
- City shard index: https://immigrationdb.com/data/cities/index.json
- Release catalog: https://immigrationdb.com/data/catalog.json