| Place Name | Flatonia |
| Place Type | Town |
| ZIP Code(s) | 78941 |
| County | Fayette County |
| Area Code(s) | 361 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 1,870 |
| Population Growth Rate (2010-19) | -5.42% |
| Majority Ethnicity | White 59.35% |
| US Congressional District(s) | Texas 10th |
| State House Districts | 13 |
| State Senate Districts | 18 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 59.35% |
| African American | 0.2% |
| Hispanic | 0% |
| Asian | 0.32% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 40.12% |