Costa Mesa city, California
Official LSAD Designation: Costa Mesa city • Census GEOID: 0616532
• Orange County
Demographics & Population Profile
Population and demographics for Costa Mesa city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 108,881 | — | 2025 | Census |
| Median Age | 36.7 yrs | ±0.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 42,292 | ±1,167 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).