Richton Park is a village in Cook County, Illinois, United States. The population was 13,646 at the 2010 census.
Richton Park is located at 41°28′55″N 87°43′31″W (41.481992, -87.725352).
According to the 2010 census, Richton Park has a total area of 3.992 square miles (10.34 km2), of which 3.98 square miles (10.31 km2) (or 99.7%) is land and 0.012 square miles (0.03 km2) (or 0.3%) is water. It is bordered by Matteson to the north, Park Forest to the east, and University Park to the south. Frankfort is the closest neighbor to the west.