Grant Park is a village in Kankakee County, Illinois, United States. Grant Park was incorporated in 1883.. In 2000, Grant Park, IL had a population of 1,358. It is included in the Combined Statistical Area for Chicago and surrounding 'Chicagoland.' Grant Park apartments for rent comparison page shows most up to date rent information on Grant Park apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.