Hillsboro city, Illinois
Official LSAD Designation: Hillsboro city • Census GEOID: 1735047
• Montgomery County
Hillsboro city is an incorporated city in Montgomery County, Illinois. According to official records from the Census (2025), Hillsboro city had an estimated population of 6,184 residents. Official Census Bureau geographic records classify this community under LSAD designation Hillsboro city (GEOID 1735047).
Local Government Administration U.S. Census Bureau GMAF
City Of Hillsboro
Municipal
Official Title:
Clerk
Address:
PO BOX 556, HILLSBORO IL 62049-0556
County Of Montgomery
County
Official Title:
County Coordinator
Address:
1 COURTHOUSE SQ, ROOM 202, HILLSBORO IL 62049-1137
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,184 | 2025 |
| Median Household Income | $50,158 | 2020-2024 |
| Median Home Value | $111,700 | 2020-2024 |
| Land Area | 8.87 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).