South Ashburnham, Massachusetts, United States [CDP]; population was 1,110 in 1990; housing units was 385 in 1990; location is 42°37'N 71°56'W; land area is 3.28 square miles (2,101 acres); water area is 0.01 square miles (7 acres); FIPS code is 62780 [SourceCBP]