Pleasant Hill city, California
Official LSAD Designation: Pleasant Hill city • Census GEOID: 0657764
• Contra Costa County
Demographics & Population Profile
Population and demographics for Pleasant Hill city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 34,017 | — | 2025 | Census |
| Median Age | 42 yrs | ±1.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 13,258 | ±492 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).