Mont Belvieu is a city in Chambers and Liberty counties in the U.S. state of Texas. It is just north of Interstate 10 along State Highway 146. The population was 2,324 at the 2000 Census, increasing 65% to 3,835 in 2010.
Mont Belvieu is located in northwestern Chambers County at 29°51′37″N 94°52′28″W / 29.860242°N 94.874535°W / 29.860242; -94.874535 (29.860242, -94.874535). A small part of the city limits extend north into Liberty County. The city is 14 miles (23 km) northeast of Baytown via Highway 146 and 31 miles (50 km) east of Houston via Interstate 10.
According to the United States Census Bureau, Mont Belvieu has a total area of 15.3 square miles (39.7 km), of which 15.0 square miles (38.9 km) is land and 0.3 square miles (0.9 km), or 2.14%, is water.
The city is along Interstate 10 and is 30 miles (48 km) east of Downtown Houston.
As of the census of 2000, there were 2,324 people, 805 households, and 664 families residing in the city. The population density was 160.0 people per square mile (61.8/km). There were 888 housing units at an average density of 61.1 per square mile (23.6/km). The racial makeup of the city was 90.96% White, 4.26% African American, 0.69% Native American, 0.43% Asian, 2.50% from other races, and 1.16% from two or more races. Hispanic or Latino of any race were 6.50% of the population.
There were 805 households out of which 49.1% had children under the age of 18 living with them, 69.2% were married couples living together, 8.6% had a female householder with no husband present, and 17.4% were non-families. 15.0% of all households were made up of individuals and 4.0% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.19.
In the city, the population was spread out with 31.5% under the age of 18, 7.3% from 18 to 24, 32.2% from 25 to 44, 23.5% from 45 to 64, and 5.6% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 98.5 males. For every 100 females age 18 and over, there were 97.0 males.
The median income for a household in the city was $54,732, and the median income for a family was $64,808. Males had a median income of $47,614 versus $29,537 for females. The per capita income for the city was $22,415. About 6.4% of families and 7.4% of the population were below the poverty line, including 6.7% of those under age 18 and 18.8% of those age 72 or over.
Mont Belvieu Texas neighborhoods include: Barbers Hill, Lakes Of Champions, Magnolia Landing