Ottumwa city, Iowa
Official LSAD Designation: Ottumwa city • Census GEOID: 1960465
• Wapello County
Demographics & Population Profile
Population and demographics for Ottumwa city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 25,319 | — | 2025 | Census |
| Median Age | 36.7 yrs | ±0.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 9,980 | ±279 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).