| Social Springs Water System North | Ringgold, LA | 744 | 38 | - |
| Bob Community Waterworks | Pollock, LA | 732 | 29 | - |
| Village of Hosston Water System | Hosston, LA | 729 | 493 | - |
| Pine Hill Water System | Haynesville, LA | 729 | 49 | - |
| Eros Community Water System | Eros, LA | 729 | 366 | - |
| Villa Feliciana Medical Complex | Jackson, LA | 726 | 100 | - |
| Sun Water Supply | Sun, LA | 726 | 129 | - |
| Leton Water System | Minden, LA | 726 | 19 | - |
| Town of Clayton Water System | Clayton, LA | 723 | 523 | - |
| Village of Dodson Water System | Dodson, LA | 714 | 40 | - |
| Ward 5 Waterworks District 1 - Lone Pine | St. Landry, LA | 711 | 43 | - |
| Junction City Water System | Junction City, LA | 708 | 31 | - |
| Provencal Water System | Provencal, LA | 702 | 170 | - |
| Florien Water System | Florien, LA | 700 | 48 | - |
| Jones McGinty Water System | Bonita, LA | 696 | 738 | - |
| Sanderson Farms, Inc | Laurel, LA | 690 | 14 | - |
| Village of Ridgecrest Water Supply | Ridgecrest, LA | 684 | 436 | - |
| Grand Cane Water System | Keatchie, LA | 675 | 45 | - |
| McDonald Water System | Jonesboro, LA | 675 | 28 | - |
| Gilark Water System | Minden, LA | 675 | 159 | - |
| Beauregard Water District #5 | Merryville, LA | 672 | 7 | - |
| Fairview Mobile Estates North WS | Prairieville, LA | 669 | 20 | - |
| Village of Rosedale Water System | Rosedale, LA | 664 | 50 | - |
| Mossville Ww District No 2 | Lake Charles, LA | 660 | 47 | - |
| Hudson Gaars Mill Water System | Dodson, LA | 660 | 1,416 | - |
| Deepwoods Utilities Inc | Keithville, LA | 657 | 40 | - |
| Sandy Point 480 Water System | Campti, LA | 654 | 707 | - |
| Magnolia-Lake Street | Des Peres, LA | 651 | 61 | - |
| Packaging Corp of America - Deridder | Deridder, LA | 650 | 14 | - |
| Cash Magic Breaux Bridge LLC | Breaux Bridge, LA | 650 | 3 | - |
| Evangeline Parish Industrial Park W S | Ville Platte, LA | 648 | 65 | - |
| Quitman Water System | Quitman, LA | 648 | 17 | - |
| Mt Olive Water System | Quitman, LA | 645 | 174 | - |
| Glen Leaf Mobile Home Community | Shreveport, LA | 645 | 15 | - |
| Clarence Water System | Clarence, LA | 642 | 236 | - |
| Pinecrest Mobile Home Village | Shreveport, LA | 639 | 11 | - |
| Village of Sikes Water System | Sikes, LA | 639 | 1,279 | - |
| Adventures RV Resort | Mandeville, LA | 635 | 81 | - |
| Magnolia-Brier Lake Utilities Inc | Des Peres, LA | 630 | 3 | - |
| Whitehall Water System Inc | Jonesville, LA | 627 | 45 | - |
| Powhatan Water System | Many, LA | 612 | 405 | - |
| Utilities Inc - Oakmont Subd | Mandeville, LA | 612 | 0 | - |
| Four Forks Water System | Keithville, LA | 609 | 55 | - |
| Collinston Water System | Collinston, LA | 609 | 167 | - |
| St Tam Parish - Abita Lakes | Covington, LA | 609 | 1 | - |
| Sixth Ward JR High W S | Covington, LA | 607 | 12 | - |
| Gillis Long Center | Carville, LA | 600 | 22 | Clean |
| Pine Crest Trailer Park | Slidell, LA | 600 | 30 | - |
| Sandy Hill Water & Sewer | Leesville, LA | 600 | 91 | - |
| Salt Works Water System | Sibley, LA | 600 | 67 | - |