Kankakee County, Illinois
| Kankakee County | |
|---|---|
| Location within the U.S. state of Illinois | |
| Illinois's location within the U.S. | |
| Coordinates: 41°08′N 87°52′W / 41.14°N 87.86°W | |
| Country | United States | 
| State | Illinois | 
| Founded | February 11, 1853 | 
| Named after | Kankakee River | 
| Seat | Kankakee | 
| Largest city | Kankakee | 
| Area | |
|  • Total | 681 sq mi (1,760 km2) | 
| • Land | 677 sq mi (1,750 km2) | 
| • Water | 4.8 sq mi (12 km2) 0.7% | 
| Population  (2020) | |
|  • Total | 107,502 | 
|  • Estimate  (2023) | 105,940 | 
| • Density | 160/sq mi (61/km2) | 
| Time zone | UTC−6 (Central) | 
| • Summer (DST) | UTC−5 (CDT) | 
| Congressional districts | 1st, 2nd | 
| Website | www | 
Kankakee County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 107,502. Its county seat is Kankakee. Kankakee County comprises the Kankakee, IL Metropolitan Statistical Area.