Benicia, California, United States [City]; population was 24,437 in 1990; housing units was 9,587 in 1990; location is 38°4'N 122°9'W; land area is 12.79 square miles (8,185 acres); water area is 1.20 square miles (770 acres); FIPS code is 5290 [SourceCBP]