Des Allemands, Louisiana, United States [CDP]; population was 2,504 in 1990; housing units was 998 in 1990; location is 29°48'N 90°29'W; land area is 6.84 square miles (4,379 acres); water area is 2.03 square miles (1,300 acres); FIPS code is 20680 [SourceCBP]