East Sandwich, Massachusetts, United States [CDP]; population was 3,171 in 1990; housing units was 1,732 in 1990; location is 41°44'N 70°26'W; land area is 7.42 square miles (4,750 acres); water area is 0.04 square miles (28 acres); FIPS code is 20380 [SourceCBP]