Onamia city, Minnesota
Official LSAD Designation: Onamia city • Census GEOID: 2748310
• Mille Lacs County
Demographics & Population Profile
Population and demographics for Onamia city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 839 | — | 2025 | Census |
| Median Age | 45.9 yrs | ±6.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 329 | ±49 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).