We found 19 public water systems that could serve the same population as Halfway-carroll Water System (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Coushatta Water System | County of Red River Parish | 3,528 | 0 | 7 |
| Fairview Union Water System | County of Red River Parish | 2,205 | 0 | 105 |
| Bayou Pierre Water System | County of Red River Parish | 1,371 | 0 | 13 |
| Martin Water System | County of Red River Parish | 1,260 | 0 | 27 |
| Social Springs Water System South | County of Red River Parish | 690 | 0 | 19 |
| Social Springs Water System North | County of Red River Parish | 675 | 0 | 8 |
| Hickory Grove Water System | Coushatta | 570 | 0 | 10 |
| East Cross Water System | County of Red River Parish | 453 | 0 | 23 |
| Hall Summit Water System | County of Red River Parish | 400 | 0 | 11 |
| Edgefield Water System | County of Red River Parish | 360 | 0 | 12 |
| Fairview Alpha School | County of Red River Parish | 300 | 0 | 0 |
| International Paper Company | County of Red River Parish | 200 | 0 | 0 |
| Grand Bayou Res. W.s. | County of Red River Parish | 200 | 0 | 0 |
| John Kelly Grand Bayou Resort W.s. | County of Red River Parish | 200 | 0 | 0 |
| Rolling Hills Mhp Water System | County of Red River Parish | 120 | 0 | 0 |
| Ware Youth Center Water System | County of Red River Parish | 74 | 0 | 0 |
| Red River Parish Sheriffs Training Cent | County of Red River Parish | 50 | 0 | 0 |
| Red River Constructors, | County of Red River Parish | 25 | 0 | 0 |
| Red River Lock & Dam #4 | County of Red River Parish | 25 | 0 | 0 |