Jacksonville city, Illinois
Official LSAD Designation: Jacksonville city • Census GEOID: 1738115
• Morgan County
Jacksonville city is an incorporated city in Morgan County, Illinois. According to official records from the Census (2025), Jacksonville city had an estimated population of 17,752 residents. Official Census Bureau geographic records classify this community under LSAD designation Jacksonville city (GEOID 1738115).
Local Government Administration U.S. Census Bureau GMAF
City Of Jacksonville
Municipal
Official Title:
City Clerk
Address:
200 W DOUGLAS AVE, JACKSONVILLE IL 62650-2012
County Of Morgan
County
Official Title:
Office Manager
Address:
300 W STATE ST, JACKSONVILLE IL 62650-2063
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 17,752 | 2025 |
| Median Household Income | $65,432 | 2020-2024 |
| Median Home Value | $128,200 | 2020-2024 |
| Land Area | 10.56 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).