Oneida city, Illinois
Official LSAD Designation: Oneida city • Census GEOID: 1756159
• Knox County
Oneida city is an incorporated city in Knox County, Illinois. According to official records from the Census (2025), Oneida city had an estimated population of 677 residents. Official Census Bureau geographic records classify this community under LSAD designation Oneida city (GEOID 1756159).
Local Government Administration U.S. Census Bureau GMAF
City Of Oneida
Municipal
Official Title:
Treasurer
Address:
PO BOX 43, ONEIDA IL 61467-0043
County Of Knox
County
Official Title:
Knox County Treasurer
Address:
200 S CHERRY ST, GALESBURG IL 61401-4912
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 677 | 2025 |
| Median Household Income | $66,791 | 2020-2024 |
| Median Home Value | $114,100 | 2020-2024 |
| Land Area | 0.76 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).