Goodlettsville, Tennessee, United States [City]; population was 11,219 in 1990; housing units was 4,761 in 1990; location is 36°19'N 86°43'W; land area is 13.65 square miles (8,739 acres); water area is 0.12 square miles (78 acres); FIPS code is 29920 [SourceCBP]