Oneida city, Illinois
Official LSAD Designation: Oneida city • Census GEOID: 1756159
• Knox County
Demographics & Population Profile
Population and demographics for Oneida city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 677 | — | 2025 | Census |
| Median Age | 43.6 yrs | ±6.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 253 | ±60 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).