Orland Park, Illinois, United States [Village]; population was 35,720 in 1990; housing units was 12,484 in 1990; location is 41°37'N 87°51'W; land area is 13.36 square miles (8,550 acres); water area is 0.21 square miles (131 acres); FIPS code is 56640 [SourceCBP]