Petersburg city, Illinois
Official LSAD Designation: Petersburg city • Census GEOID: 1759312
• Menard County
Petersburg city is an incorporated city in Menard County, Illinois. According to official records from the Census (2025), Petersburg city had an estimated population of 2,125 residents. Official Census Bureau geographic records classify this community under LSAD designation Petersburg city (GEOID 1759312).
Local Government Administration U.S. Census Bureau GMAF
City Of Petersburg
Municipal
Official Title:
Zoning Admin
Address:
PO BOX 139, PETERSBURG IL 62675-0139
County Of Menard
County
Official Title:
Menard County Treasurer
Address:
PO BOX 436, PETERSBURG IL 62675-0436
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 2,125 | 2025 |
| Median Household Income | $56,458 | 2020-2024 |
| Median Home Value | $177,700 | 2020-2024 |
| Land Area | 1.56 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).