Galliano, Louisiana, United States [CDP]; population was 4,294 in 1990; housing units was 1,624 in 1990; location is 29°26'N 90°18'W; land area is 8.12 square miles (5,194 acres); water area is 0.00 square miles (0 acres); FIPS code is 28065 [SourceCBP]