Prairie du Chien, Wisconsin, United States [City]; population was 5,659 in 1990; housing units was 2,393 in 1990; location is 43°3'N 91°8'W; land area is 4.35 square miles (2,785 acres); water area is 0.75 square miles (478 acres); FIPS code is 65050 [SourceCBP]