Groveland-Big Oak Flat, California, United States [CDP]; population was 2,753 in 1990; housing units was 2,420 in 1990; location is 37°51'N 120°12'W; land area is 21.83 square miles (13,974 acres); water area is 0.25 square miles (161 acres); FIPS code is 31375 [SourceCBP]