Alamosa city, Colorado
Official LSAD Designation: Alamosa city • Census GEOID: 0801090
• Alamosa County
Demographics & Population Profile
Population and demographics for Alamosa city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 9,849 | — | 2025 | Census |
| Median Age | 31.2 yrs | ±1.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 4,084 | ±199 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).