| Place Name | Sweeny |
| Place Type | City |
| ZIP Code(s) | 77480 |
| County | Brazoria County |
| Area Code(s) | 979 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 3,722 |
| Population Growth Rate (2010-19) | -1.57% |
| Majority Ethnicity | White 65.33% |
| Metro/Micro Stats Area | Houston-The Woodlands-Sugar Land, TX |
| US Congressional District(s) | Texas 14th |
| State House Districts | 25 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 65.33% |
| African American | 10.27% |
| Hispanic | 0% |
| Asian | 0.18% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 24.22% |