San Marcos
San Marcos is significantly wealthier than the US average, with a median household income of $109,377. The city has grown rapidly, with population up 73% since 2000. Median home value has more than tripled since 2000, reaching $868,000. It ranks in the top 5% of US cities for household income.
Population & growth
PEP 2025 EST:94,908 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 8 more hispanic origin groups with data
+ 43 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to San Marcos
Compare San Marcos to nearby cities
How many people live in San Marcos, California?
San Marcos, California has about 94,882 residents according to the 2024 American Community Survey.
What is the median household income in San Marcos, California?
The typical household in San Marcos, California earns about $109,377 a year. Half of households make more than that, and half make less.
Is San Marcos, California expensive?
In San Marcos, California, the median home is worth about $868,000, and the typical rent is about $2,348 a month.
How educated are people in San Marcos, California?
About 43.8% of adults age 25 and over in San Marcos, California hold a bachelor's degree or higher.
What is the poverty rate in San Marcos, California?
About 9.2% of people in San Marcos, California live below the federal poverty line.
Has San Marcos, California grown since 1990?
Yes, San Marcos, California has grown since 1990. The population has added about 55,908 residents, a change of about 143 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024