Richland ↗
San Marcos, San Diego County
San Marcos
A local perspective.
Discover the places, stories, and people connected to San Marcos.
Get to know San Marcos.
San Marcos is a city, San Diego County, California.
San Marcos in context
San Marcos is an incorporated city in San Diego County, California.
The 2020 Census recorded 94,833 residents and 31,724 housing units for its 2020 geography. The figures below also identify the date and source for each statistic.
The directory links 2 named local areas to San Marcos. Start with Richland and Twin Oaks to explore the area at a smaller scale.
The Census geography used here lists a land area of 63.7 square kilometres. A place name, its postal addresses and its official statistical boundary can describe different areas, so use the linked map sources for boundary questions.
Community details
- USGS topographic map
- San Marcos Source ↗
- USGS geographic name ID
- 1661388 Source ↗
- Population
- 94,833 (2020 Census geography) Source ↗
- Housing units
- 31,724 (2020 Census geography) Source ↗
- Median owner-occupied home value (survey estimate)
- $868,000 ± $26,665 (2020–2024 ACS 5-year) Source ↗
- Median monthly gross rent (survey estimate)
- $2,348 ± $76 (2020–2024 ACS 5-year) Source ↗
- Households (survey estimate)
- 31,350 ± 806 (2020–2024 ACS 5-year) Source ↗
- Owner-occupied households (survey estimate)
- 19,976 ± 774 (2020–2024 ACS 5-year) Source ↗
- Renter-occupied households (survey estimate)
- 11,374 ± 720 (2020–2024 ACS 5-year) Source ↗
American Community Survey estimates cover 2020–2024 and show the 90% margin of error when available. Gross rent includes rent and applicable tenant-paid utilities. Census and survey figures describe the geography used for that release; housing estimates are historical survey figures rather than current asking prices.
Locate San Marcos
Other mapped places to explore
- Lake San Marcos 4.0 km between map reference points
- Harmony Grove 4.8 km between map reference points
- Elfin Forest 5.9 km between map reference points
Distances are straight-line measurements between mapped reference points, rather than walking or driving distances.
Local information and resources
Neighborhoods and local areas
2 named areas connected to San Marcos.
Twin Oaks ↗
San Marcos, San Diego County
Community guides
From local creators
Share a local perspective on San Marcos. Approved creator posts appear here when they are tagged for this community.
Location sources
Neighborhood names and boundaries can overlap and vary by source.