Custer Township is located in Will County, Illinois. As of the 2010 census, its population was 1,430 and it contained 612 housing units. Custer Township was formed from Reed Township and Wilmington Township at an unknown date.
Custer Park is in Will County,. The latitude for Custer Park is 41.245N. The longitude is -88.13W.
According to the 2010 census, the township has a total area of 26.35 square miles (68.2 km2), of which 25.75 square miles (66.7 km2) (or 97.72%) is land and 0.61 square miles (1.6 km2) (or 2.31%) is water.
Coordinates: 41°13′55″N 88°08′12″W / 41.23194°N 88.13667°W / 41.23194; -88.13667