West Seneca, New York, United States [CDP]; population was 47,866 in 1990; housing units was 17,818 in 1990; location is 42°50'N 78°45'W; land area is 21.38 square miles (13,686 acres); water area is 0.02 square miles (14 acres); FIPS code is 80907 [SourceCBP]