| Place Name | Onamia |
| Place Type | City |
| ZIP Code(s) | 56359 |
| County | Mille Lacs County |
| Area Code(s) | 320 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 976 |
| Population Growth Rate (2010-19) | -10.71% |
| Majority Ethnicity | White 80.3% |
| Metro/Micro Stats Area | Minneapolis-St. Paul-Bloomington, MN-WI |
| US Congressional District(s) | Minnesota 8th |
| State House Districts | 15A |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.3% |
| African American | 4.55% |
| Hispanic | 12.75% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.4% |