Rancho Cucamonga city, California
Official LSAD Designation: Rancho Cucamonga city • Census GEOID: 0659451
• San Bernardino County
Demographics & Population Profile
Population and demographics for Rancho Cucamonga city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 177,856 | — | 2025 | Census |
| Median Age | 38.6 yrs | ±0.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 58,835 | ±924 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).