Manteno is a village in Kankakee County, Illinois, United States. The population was 9,210 at the 2020 census. It is part of the Kankakee-Bourbonnais-Bradley Metropolitan Statistical Area.

Kankakee County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 107,502. Its county seat is Kankakee. Kankakee County comprises the Kankakee, IL Metropolitan Statistical Area.