Calumet city, Iowa
Official LSAD Designation: Calumet city • Census GEOID: 1910090
• O'Brien County
Demographics & Population Profile
Population and demographics for Calumet city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 144 | — | 2025 | Census |
| Median Age | 38.3 yrs | ±16.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 50 | ±17 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).