Bonfield is a village in Kankakee County, Illinois, United States. Bonfield's population was 382 at the 2010 census. It is included in the Kankakee-Bradley, Illinois Metropolitan Statistical Area. Although founded by a quarryman, Thomas Verkler, the village was named after Thomas Bonfield, an attorney for the Kankakee& Seneca Railroad Company, which established a depot in the village. The railroad has long since disappeared into history but it had been on Johnson Street.