Fountain Valley city, California
Official LSAD Designation: Fountain Valley city • Census GEOID: 0625380
• Orange County
Demographics & Population Profile
Population and demographics for Fountain Valley city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 55,508 | — | 2025 | Census |
| Median Age | 44.4 yrs | ±1.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 18,778 | ±619 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).