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.
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.