We found 39 public water systems that could serve the same population as Jeff Davis Water District 4 (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| City Of Jennings Water System | Jennings | 10,300 | 12 | 8 |
| Jeff Davis Water And Sewer Commission 1 | County of Jefferson Davis Parish | 8,814 | 0 | 8 |
| Jeff Davis Central Waterworks District | County of Jefferson Davis Parish | 4,722 | 0 | 1 |
| Town Of Welsh Water System | County of Jefferson Davis Parish | 3,487 | 0 | 7 |
| Town Of Lake Arthur Water System | County of Jefferson Davis Parish | 2,781 | 0 | 3 |
| Lacassine Rv Park Water System | County of Jefferson Davis Parish | 1,605 | 0 | 0 |
| Town Of Elton Water System | Elton | 1,128 | 16 | 25 |
| Jeff Davis Ww District No 1 | County of Jefferson Davis Parish | 400 | 0 | 0 |
| Jeff Davis Ww District No 5 | County of Jefferson Davis Parish | 400 | 0 | 0 |
| Hathaway High School | County of Jefferson Davis Parish | 385 | 0 | 0 |
| Village Of Fenton Water System | County of Jefferson Davis Parish | 379 | 0 | 13 |
| Leevac Shipyard Inc | County of Jefferson Davis Parish | 170 | 0 | 0 |
| Amoco Production Company | County of Jefferson Davis Parish | 100 | 0 | 0 |
| Gables Cafe | County of Jefferson Davis Parish | 100 | 0 | 0 |
| Jeff Davis Academy | County of Jefferson Davis Parish | 100 | 0 | 0 |
| Laura Breaux | County of Jefferson Davis Parish | 100 | 0 | 0 |
| Laura Breaux | County of Jefferson Davis Parish | 100 | 0 | 0 |
| Trailer Town Trailer Park Water System | County of Jefferson Davis Parish | 75 | 0 | 0 |
| Sba Shipyards Inc | County of Jefferson Davis Parish | 65 | 0 | 0 |
| Treasure Wood T. P. | County of Jefferson Davis Parish | 60 | 0 | 0 |
| Gerald Guidry | County of Jefferson Davis Parish | 30 | 0 | 0 |
| Gerald Guidry | County of Jefferson Davis Parish | 30 | 0 | 0 |
| Tass Cafe And Grocery | County of Jefferson Davis Parish | 25 | 0 | 0 |
| Staggs Tire Center | County of Jefferson Davis Parish | 25 | 0 | 0 |
| Phillips Petroleum Co | County of Jefferson Davis Parish | 25 | 0 | 0 |
| Texaco Inc | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Hawthorn Flying Service | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Superior Oil Co | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Hoffpauir Motors Inc | County of Jefferson Davis Parish | 20 | 0 | 0 |
| American Grain Assn | County of Jefferson Davis Parish | 20 | 0 | 0 |
| South La Production | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Amoco Production Company | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Shepherd Oil Co Inc | County of Jefferson Davis Parish | 20 | 0 | 0 |
| T & S Refining Inc | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Strohes Slaughter House | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Dupuis Abattoir | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Teal Flying Service | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Evangeline Station | County of Jefferson Davis Parish | 20 | 0 | 0 |
| Lacassine Fuel Station | County of Jefferson Davis Parish | 20 | 0 | 0 |