Founded in 1871, Red River Parish is one of 64 parishes in the state of Louisiana. Historically, Red River Parish was formed from parts of Bienville Parish, Bossier Parish, Caddo Parish and Natchitoches Parish. The city of Coushatta is the parish seat. With FIPS code of 81, Red River Parish has a population of 7,564 and area of 402 square miles (1,041 km2).
List of all cities in Red River Parish, LA alphabetically
| City/Town | Postal Code | Area Code |
| Armistead, LA | 71019 | 318 |
| Coushatta, LA | 71019 | 318 |
| East Point, LA | 71019 | 318 |
| Gahagan, LA | 71019 | 318 |
| Hall Summit, LA | 71034 | 318 |
| Hanna, LA | 71019 | 318 |
| Harmon, LA | 71019 | 318 |