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San Marino city, CA
ZIP 91108 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
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Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 91108
91108 has a population of 12,464 with a median age of 45.6 yrs (51.5% male).
Health & Community Indicators in 91108
Historical Trends in 91108 (2020–Present)
Since 2020, population declined 5.4%, median income fell 3.5% (inflation-adjusted), home values decreased 15.1%.
People & Community key statistics
| Population | |
|---|---|
| Population | 12,464 |
| Median age | 45.6 |
| Poverty rate | 5.8% |
| Demographics | |
|---|---|
| White | 23.6% |
| Hispanic | 7.2% |
| Black | 0.3% |
| Asian | 68.3% |
| Foreign-born | 28.8% |