| Place Name | Rio |
| Place Type | Census Designated Place |
| ZIP Code(s) | 70427 |
| County | Washington Parish |
| Area Code(s) | 985 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 308 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Bogalusa, LA |
| US Congressional District(s) | Louisiana 5th |
| State House Districts | 75 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |