Sullivan city, Illinois
Official LSAD Designation: Sullivan city • Census GEOID: 1773495
• Moultrie County
Sullivan city is an incorporated city in Moultrie County, Illinois. According to official records from the Census (2025), Sullivan city had an estimated population of 4,310 residents. Official Census Bureau geographic records classify this community under LSAD designation Sullivan city (GEOID 1773495).
Local Government Administration U.S. Census Bureau GMAF
City Of Sullivan
Municipal
Official Title:
Mayor
Address:
2 W HARRISON ST, SULLIVAN IL 61951-1987
County Of Moultrie
County
Official Title:
Moultrie County Treasurer
Address:
COURTHOUSE, SULLIVAN IL 61951
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 4,310 | 2025 |
| Median Household Income | $63,229 | 2020-2024 |
| Median Home Value | $102,500 | 2020-2024 |
| Land Area | 2.77 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).