San Marino, CA Demographics
San Marino, CA is the 445th most populous of 1611 cities in California, with 12,513 residents across 4 square miles. That is about 3,323 people per square mile.
At the 2020 census
| Population | 12,513 |
|---|---|
| Land area | 4 sq mi |
| Density | 3,323 / sq mi |
Data: 2020 Decennial Census · land area from Census TIGER/Line
How San Marino, CA compares to the US
We're computing this city's comparison table. Check back shortly. Population, land area, and density above are already exact.
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About this page
City statistics cover the municipal boundary only, not the wider metro area.
Figures come from the 2020 census and the American Community Survey, compared against national averages.