Belvidere city, Illinois
Official LSAD Designation: Belvidere city • Census GEOID: 1705092
• Boone County
Belvidere city is an incorporated city in Boone County, Illinois. According to official records from the Census (2025), Belvidere city had an estimated population of 25,462 residents. Official Census Bureau geographic records classify this community under LSAD designation Belvidere city (GEOID 1705092).
Local Government Administration U.S. Census Bureau GMAF
City Of Belvidere
Municipal
Official Title:
Finance Director
Address:
401 WHITNEY BLVD, STE 100, BELVIDERE IL 61008-3693
County Of Boone
County
Official Title:
County Administrator
Address:
1212 LOGAN AVE, SUITE 102, BELVIDERE IL 61008-4033
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 25,462 | 2025 |
| Median Household Income | $64,528 | 2020-2024 |
| Median Home Value | $158,900 | 2020-2024 |
| Land Area | 13.35 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).