Carroll County | |
|---|---|
 | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 42°04′N 89°55′W / 42.06°N 89.92°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1839 |
| Named for | 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 (60 km2) 4.6% |
| Population (2020) | |
| • Total | 15,702 |
| • Estimate (2023) | 15,526  |
| • Density | 34/sq mi (13/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.[1] Its county seat is Mount Carroll.[2]
- ^ "Carroll County, Illinois". United States Census Bureau. Retrieved June 8, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.