| Place Name | Mer Rouge |
| Place Type | Village |
| ZIP Code(s) | 71261 |
| County | Morehouse Parish |
| Area Code(s) | 318 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 611 |
| Population Growth Rate (2010-19) | -21.82% |
| Majority Ethnicity | White 52.66% |
| Metro/Micro Stats Area | Monroe, LA |
| US Congressional District(s) | Louisiana 5th |
| State House Districts | 19 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 52.66% |
| African American | 47.19% |
| Hispanic | 0% |
| Asian | 0.15% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |