Turpin Hills, Ohio, United States [CDP]; population was 4,927 in 1990; housing units was 1,734 in 1990; location is 39°6'N 84°22'W; land area is 2.98 square miles (1,909 acres); water area is 0.00 square miles (0 acres); FIPS code is 77840 [SourceCBP]