Penn Hills, Pennsylvania, United States [CDP]; population was 51,430 in 1990; housing units was 20,439 in 1990; location is 40°29'N 79°50'W; land area is 19.03 square miles (12,177 acres); water area is 0.27 square miles (172 acres); FIPS code is 59040 [SourceCBP]
