Bureau County, Illinois
| Bureau County | |
|---|---|
| Red Covered Bridge (1863) | |
| Location within the U.S. state of Illinois | |
| Illinois's location within the U.S. | |
| Coordinates: 41°25′N 89°32′W / 41.41°N 89.53°W | |
| Country | United States | 
| State | Illinois | 
| Founded | 1837 | 
| Seat | Princeton | 
| Largest city | Princeton | 
| Area | |
|  • Total | 874 sq mi (2,260 km2) | 
| • Land | 869 sq mi (2,250 km2) | 
| • Water | 4.5 sq mi (12 km2) 0.5% | 
| Population  (2020) | |
|  • Total | 33,244 | 
|  • Estimate  (2023) | 32,729 | 
| • Density | 38/sq mi (15/km2) | 
| Time zone | UTC−6 (Central) | 
| • Summer (DST) | UTC−5 (CDT) | 
| Congressional districts | 14th, 16th | 
| Website | bureaucounty-il | 
Bureau County is a county located in the U.S. state of Illinois. As of the 2020 United States census, the population was 33,244. Its county seat is Princeton. Bureau County is part of the Ottawa, IL Micropolitan Statistical Area, and the Hennepin Canal Parkway State Park is located partly in this county.