Westminster city, Colorado
Official LSAD Designation: Westminster city • Census GEOID: 0883835
• Adams County / Jefferson County
Demographics & Population Profile
Population and demographics for Westminster city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 116,182 | — | 2025 | Census |
| Median Age | 37.4 yrs | ±0.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 48,106 | ±839 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).