Harrisburg city, Illinois
Official LSAD Designation: Harrisburg city • Census GEOID: 1733136
• Saline County
Harrisburg city is an incorporated city in Saline County, Illinois. According to official records from the Census (2025), Harrisburg city had an estimated population of 7,922 residents. Official Census Bureau geographic records classify this community under LSAD designation Harrisburg city (GEOID 1733136).
Local Government Administration U.S. Census Bureau GMAF
City Of Harrisburg
Municipal
Official Title:
Treasurer
Address:
110 E LOCUST ST, HARRISBURG IL 62946-1589
County Of Saline
County
Official Title:
Saline County Treasurer
Address:
10 E POPLAR ST, HARRISBURG IL 62946-1553
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 7,922 | 2025 |
| Median Household Income | $43,415 | 2020-2024 |
| Median Home Value | $84,100 | 2020-2024 |
| Land Area | 6.61 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).