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Altadena CDP, CA
ZIP 91001 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Upper Middle ClassLow Snow AreaRemote Work Hub
Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 91001
91001 has a population of 36,402 with a median age of 46.1 yrs (47.8% male).
Health & Community Indicators in 91001
Historical Trends in 91001 (2020–Present)
Since 2020, population declined 0.8%, median income rose 8.7% (inflation-adjusted), home values increased 13.4%.
People & Community key statistics
| Population | |
|---|---|
| Population | 36,402 |
| Median age | 46.1 |
| Poverty rate | 7.2% |
| Demographics | |
|---|---|
| White | 41.9% |
| Hispanic | 29.4% |
| Black | 20.7% |
| Asian | 6.0% |
| Foreign-born | 8.4% |