Lake San Marcos CDP, California
Official LSAD Designation: Lake San Marcos CDP • Census GEOID: 0639724
• San Diego County
Demographics & Population Profile
Population and demographics for Lake San Marcos CDP.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population | 4,693 | ±708 | 2020-2024 | Census ACS 5-Year 2024 |
| Median Age | 63 yrs | ±3.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,000 | ±237 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).