Red Bud, Illinois, United States [City]; population was 2,918 in 1990; housing units was 1,174 in 1990; location is 38°13'N 89°60'W; land area is 1.66 square miles (1,065 acres); water area is 0.01 square miles (4 acres); FIPS code is 63043 [SourceCBP]