Princeton is a city in and the county seat of Bureau County, Illinois, United States. The population was 7,700 at the 2014 census.
Princeton is part of the Ottawa–Streator Micropolitan Statistical Area, which is included within the Chicago-Naperville Combined Statistical Area. Due to its location where Interstate 80 meets the Amtrak system, as well as its well-preserved main street and historic housing stock, Princeton has become a popular satellite town for Chicagoland and the Quad Cities.(Wikipedia)