| Place Name | Lake Arthur |
| Place Type | Town |
| ZIP Code(s) | 70549 |
| County | Jefferson Davis Parish |
| Area Code(s) | 337 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 2,750 |
| Population Growth Rate (2010-19) | -5.22% |
| Majority Ethnicity | White 82.1% |
| Metro/Micro Stats Area | Jennings, LA |
| US Congressional District(s) | Louisiana 3rd |
| State House Districts | 37 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.1% |
| African American | 11.3% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.6% |