El Cajon city, California
Official LSAD Designation: El Cajon city • Census GEOID: 0621712
• San Diego County
Demographics & Population Profile
Population and demographics for El Cajon city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 101,755 | — | 2025 | Census |
| Median Age | 36.1 yrs | ±0.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 33,890 | ±848 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).