Bourbonnais is located in Kankakee County and is part of a tri-city area that includes Kankakee and Bradley along U.S. 45/52 and Interstate 57 on the banks of the Kankakee River near the Iroquois River. The town is about 5 miles southeast of Kankakee River State Park.
For those desiring post-high school education, Olivet Nazarene University is located here. In addition to the educational advantages of the university, the facility is leased out to the the NFL's Chicago Bears for their pre-season training camp during late summer.
The population estimate for July 1, 1998 was 15,511, an increase of 1,582 since 1990.