Mount Olive city, Illinois
Official LSAD Designation: Mount Olive city • Census GEOID: 1751024
• Macoupin County
Mount Olive city is an incorporated city in Macoupin County, Illinois. According to official records from the Census (2025), Mount Olive city had an estimated population of 1,936 residents. Official Census Bureau geographic records classify this community under LSAD designation Mount Olive city (GEOID 1751024).
Local Government Administration U.S. Census Bureau GMAF
City Of Mount Olive
Municipal
Official Title:
Mayor
Address:
215 E MAIN ST, MOUNT OLIVE IL 62069-1704
County Of Macoupin
County
Official Title:
County Clerk
Address:
201 E MAIN, PO BOX 107, CARLINVILLE IL 62626
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 1,936 | 2025 |
| Median Household Income | $55,625 | 2020-2024 |
| Median Home Value | $94,100 | 2020-2024 |
| Land Area | 1.15 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).