Fern Creek, Kentucky, United States [CDP]; population was 16,406 in 1990; housing units was 5,996 in 1990; location is 38°9'N 85°36'W; land area is 5.82 square miles (3,722 acres); water area is 0.00 square miles (1 acres); FIPS code is 27046 [SourceCBP]