Carroll County, Illinois
Carroll County, Illinois | |
|---|---|
Location within the U.S. state of Illinois | |
| Coordinates: 42°04′N 89°55′W / 42.06°N 89.92°W | |
| Country | United States |
| State | Illinois |
| Founded | 1839 |
| Named after | Charles Carroll |
| Seat | Mount Carroll |
| Largest city | Savanna |
| Area | |
• Total | 466 sq mi (1,210 km2) |
| • Land | 445 sq mi (1,150 km2) |
| • Water | 22 sq mi (57 km2) 4.6% |
| Population (2020) | |
• Total | 15,702 |
• Estimate (2024) | 15,444 |
| • Density | 35.3/sq mi (13.6/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 17th |
| Website | www |
Carroll County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 15,702. Its county seat is Mount Carroll.