San Marcos, CA Demographics
San Marcos, CA is the 81st most populous of 1611 cities in California, with 94,833 residents across 25 square miles. That is about 3,860 people per square mile.
At the 2020 census
| Population | 94,833 |
|---|---|
| Land area | 25 sq mi |
| Density | 3,860 / sq mi |
Data: 2020 Decennial Census · land area from Census TIGER/Line
How San Marcos, CA compares to the US
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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.