Southbridge, Massachusetts, United States [CDP]; population was 13,631 in 1990; housing units was 5,809 in 1990; location is 42°5'N 72°2'W; land area is 5.07 square miles (3,244 acres); water area is 0.04 square miles (23 acres); FIPS code is 63305 [SourceCBP]