| Place Name | St. Martinville |
| Place Type | City |
| ZIP Code(s) | 70582 |
| County | Saint Martin Parish |
| Area Code(s) | 337 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 6,165 |
| Population Growth Rate (2010-19) | -12.02% |
| Majority Ethnicity | African American 62.78% |
| Metro/Micro Stats Area | Lafayette, LA |
| US Congressional District(s) | Louisiana 3rd |
| State House Districts | 96 |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 35.97% |
| African American | 62.78% |
| Hispanic | 0% |
| Asian | 0.82% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.43% |