Custer Park is an unincorporated community and census designated place (CDP) in Will County, Illinois, United States. Custer Park is located on Illinois Route 113 and the south bank of the Kankakee River east-southeast of Braidwood.
As of the 2020 census, Custer Park had a population of 112.
Custer Park first appeared as a census designated place in the 2020 U.S. census.
It is in the Reed Custer Community Unit School District 255U.