McKeesport, Pennsylvania, United States [City]; population was 26,016 in 1990; housing units was 12,535 in 1990; location is 40°20'N 79°51'W; land area is 5.01 square miles (3,205 acres); water area is 0.38 square miles (243 acres); FIPS code is 46256 [SourceCBP]