Illiopolis village, Illinois
Official LSAD Designation: Illiopolis village • Census GEOID: 1737127
• Sangamon County
Illiopolis village is an incorporated village in Sangamon County, Illinois. According to official records from the Census (2025), Illiopolis village had an estimated population of 832 residents. Official Census Bureau geographic records classify this community under LSAD designation Illiopolis village (GEOID 1737127).
Local Government Administration U.S. Census Bureau GMAF
Village Of Illiopolis
Municipal
Official Title:
Treasurer
Address:
PO BOX 299, ILLIOPOLIS IL 62539-0299
County Of Sangamon
County
Official Title:
Dep. Auditor
Address:
200 S 9TH ST, STE 201, SPRINGFIELD IL 62701-1967
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 832 | 2025 |
| Median Household Income | $63,125 | 2020-2024 |
| Median Home Value | $100,800 | 2020-2024 |
| Land Area | 0.68 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).