Mont Belvieu, Texas, United States [Town]; population was 1,323 in 1990; housing units was 526 in 1990; location is 29°51'N 94°53'W; land area is 13.51 square miles (8,646 acres); water area is 0.36 square miles (231 acres); FIPS code is 49068 [SourceCBP]