We found 48 public water systems that could serve the same population as St John Water District 2 (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| St John Water District 3 | County of St. John The Baptist Parish | 29,872 | 0 | 2 |
| St John Water District 1 | La Place | 12,577 | 52 | 66 |
| Consolidated Waterworks Dist 1 | County of St. John The Baptist Parish | 6,664 | 0 | 0 |
| Marathon Petroleum Company Llc | County of St. John The Baptist Parish | 817 | 0 | 13 |
| Riverside Academy | County of St. John The Baptist Parish | 615 | 0 | 0 |
| Ei Dupont De Nemours Co | County of St. John The Baptist Parish | 526 | 0 | 0 |
| Pleasure Bend Water Supply | County of St. John The Baptist Parish | 495 | 0 | 27 |
| Bec's At The Lake Restaurant And Caterin | County of St. John The Baptist Parish | 150 | 0 | 2 |
| Pinnacle Polymers | County of St. John The Baptist Parish | 103 | 0 | 0 |
| Champagne Shell | County of St. John The Baptist Parish | 100 | 0 | 0 |
| Halfway House Bar | County of St. John The Baptist Parish | 100 | 0 | 0 |
| Exxon Co Usa-am Eugene Reg Sup | County of St. John The Baptist Parish | 100 | 0 | 0 |
| Wheel Estates Trailer Pk | County of St. John The Baptist Parish | 100 | 0 | 0 |
| Ecol Inc | County of St. John The Baptist Parish | 75 | 0 | 0 |
| Milton Bercegay Water Supply | County of St. John The Baptist Parish | 70 | 0 | 0 |
| Frenier Landing Restaurant | County of St. John The Baptist Parish | 50 | 0 | 0 |
| Crab Trap Boil Seafood Llc | County of St. John The Baptist Parish | 45 | 0 | 0 |
| Southeastern La University | County of St. John The Baptist Parish | 45 | 0 | 0 |
| Gary Keating Water Supply | County of St. John The Baptist Parish | 40 | 0 | 0 |
| Robert Zannini | County of St. John The Baptist Parish | 36 | 0 | 0 |
| Gators Den Cajun Cafe | County of St. John The Baptist Parish | 30 | 0 | 0 |
| Halfway House | County of St. John The Baptist Parish | 30 | 0 | 0 |
| Joy Lounge | County of St. John The Baptist Parish | 30 | 0 | 0 |
| Jp Tatman | County of St. John The Baptist Parish | 25 | 0 | 0 |
| Beacon Lounge | County of St. John The Baptist Parish | 25 | 0 | 0 |
| Cajun Pride Water System | County of St. John The Baptist Parish | 25 | 0 | 0 |
| Gary Keating's Grocery | County of St. John The Baptist Parish | 25 | 0 | 0 |
| Cashio Equipment | County of St. John The Baptist Parish | 24 | 0 | 0 |
| Rue St. James | County of St. John The Baptist Parish | 23 | 0 | 0 |
| Short Stop | County of St. John The Baptist Parish | 20 | 0 | 0 |
| Riverlands Ready Mix | County of St. John The Baptist Parish | 20 | 0 | 0 |
| Rue St John W S C/o L Nickens | County of St. John The Baptist Parish | 20 | 0 | 0 |
| Herman Granier | County of St. John The Baptist Parish | 18 | 0 | 0 |
| Edgar Vicknair Jr.water Supply | County of St. John The Baptist Parish | 16 | 0 | 0 |
| Wayne Guidry | County of St. John The Baptist Parish | 16 | 0 | 0 |
| Abele Dutreil | County of St. John The Baptist Parish | 15 | 0 | 0 |
| Wckw | County of St. John The Baptist Parish | 14 | 0 | 0 |
| J M Marchese | County of St. John The Baptist Parish | 14 | 0 | 0 |
| James Hano | County of St. John The Baptist Parish | 13 | 0 | 0 |
| Kalser Investment & Imp Corp | County of St. John The Baptist Parish | 12 | 0 | 0 |
| Andrew Billiot | County of St. John The Baptist Parish | 10 | 0 | 0 |
| Randy Parker Water Supply | County of St. John The Baptist Parish | 10 | 0 | 0 |
| St John Parish Sheriff Dept | County of St. John The Baptist Parish | 10 | 0 | 0 |
| Mrs D Arcuri | County of St. John The Baptist Parish | 10 | 0 | 0 |
| Jack Bates | County of St. John The Baptist Parish | 7 | 0 | 0 |
| Roland Creel | County of St. John The Baptist Parish | 4 | 0 | 0 |
| Galva Lounge | County of St. John The Baptist Parish | 0 | 0 | 0 |
| S La Globalplex Terminal | County of St. John The Baptist Parish | 0 | 0 | 0 |