South Chicago Heights Cook CountyIllinois www.southchicagoheights.com Map Population 3,957 (2020)Type VillageArea 1.58 sq mi (4.09 km²), 0.02 sq mi waterGovernment VILLAGE OF SOUTH CHICAGO HEIGHTSGovernment office 3317 CHICAGO RD, SOUTH CHICAGO HEIGHTS, IL 60411