| Place Name | Mamou |
| Place Type | Town |
| ZIP Code(s) | 70554 |
| County | Evangeline Parish |
| Area Code(s) | 337 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 3,243 |
| Population Growth Rate (2010-19) | -9.44% |
| Majority Ethnicity | African American 62.76% |
| US Congressional District(s) | Louisiana 4th |
| State House Districts | 38 |
| State Senate Districts | 28 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 36.62% |
| African American | 62.76% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.62% |