Boone County | |
|---|---|
.jpg) Floyd Hopkins Block in the Belvidere North State Street Historic District | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 42°20′N 88°49′W / 42.33°N 88.81°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1837 |
| Named for | Daniel Boone |
| Seat | Belvidere |
| Largest city | Belvidere |
| Area | |
• Total | 282.039 sq mi (730.48 km2) |
| • Land | 280.741 sq mi (727.12 km2) |
| • Water | 1.298 sq mi (3.36 km2) |
| Population (2020) | |
• Total | 53,448 |
• Estimate (2023) | 53,202  |
| • Density | 190/sq mi (73/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional districts | 11th, 16th |
| Website | www |
Boone County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 53,448. Its county seat is Belvidere.[1] Boone County is included in the Rockford, IL Metropolitan Statistical Area.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.