| Place Name | Mont Belvieu |
| Place Type | City |
| ZIP Code(s) | 77521 77523 77535 |
| County | Chambers County Liberty County |
| Area Code(s) | 281,346,713,832 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 3,864 |
| Population Growth Rate (2010-19) | 99.58% |
| Majority Ethnicity | White 80.83% |
| Metro/Micro Stats Area | Houston-The Woodlands-Sugar Land, TX |
| US Congressional District(s) | Texas 36th |
| State House Districts | 18,23 |
| State Senate Districts | 3,4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.83% |
| African American | 8.55% |
| Hispanic | 0.36% |
| Asian | 0.75% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.51% |