Galesburg city, Illinois
Official LSAD Designation: Galesburg city • Census GEOID: 1728326
• Knox County
Galesburg city is an incorporated city in Knox County, Illinois. According to official records from the Census (2025), Galesburg city had an estimated population of 28,581 residents. Official Census Bureau geographic records classify this community under LSAD designation Galesburg city (GEOID 1728326).
Local Government Administration U.S. Census Bureau GMAF
City Of Galesburg
Municipal
Official Title:
Fin. Officer
Address:
55 W TOMPKINS ST, GALESBURG IL 61401-4408
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 | 28,581 | 2025 |
| Median Household Income | $48,297 | 2020-2024 |
| Median Home Value | $96,400 | 2020-2024 |
| Land Area | 17.77 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).