Garrison city, Iowa
Official LSAD Designation: Garrison city • Census GEOID: 1930000
• Benton County
Demographics & Population Profile
Population and demographics for Garrison city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 353 | — | 2025 | Census |
| Median Age | 41 yrs | ±15.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 117 | ±28 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).