We found 38 public water systems that could serve the same population as Wessington (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Huron | Huron | 12,592 | 36 | 4 |
| Mid-dakota Rural Water | Miller, Pierre | 10,200 | 30 | 1 |
| Miller | Miller | 1,489 | 0 | 11 |
| Wolsey | Wolsey | 376 | 0 | 48 |
| Dakota Pork Industries | County of Beadle | 300 | 0 | 0 |
| Iroquois | Iroquois | 260 | 0 | 6 |
| Huron Dressed Beef | County of Beadle | 250 | 0 | 0 |
| Prairie Villa Mobile Home Park | County of Beadle | 240 | 0 | 0 |
| Sunshine Bible Academy | Miller | 240 | 0 | 123 |
| Saint Lawrence | Miller, Saint Lawrence | 198 | 0 | 115 |
| Wessington | Wessington | 175 | 0 | 46 |
| Byron Bible Camp | County of Beadle | 162 | 0 | 0 |
| Millerdale Colony | County of Hand | 140 | 0 | 0 |
| Standing Rock Sioux Tribe | Chief Gall Inn | 125 | 0 | 0 |
| Cavour | Cavour, Iroquois | 114 | 0 | 0 |
| Lake's Byron Lodge | County of Beadle | 100 | 0 | 0 |
| Kasperson's West Park | County of Beadle | 100 | 0 | 0 |
| Pearl Creek Colony | Aberdeen, Iroquois | 94 | 0 | 0 |
| Hitchcock | Hitchcock, Miller | 91 | 0 | 0 |
| Huron Colony | Aberdeen, Huron | 90 | 0 | 0 |
| Fair Camp | County of Beadle | 90 | 0 | 0 |
| Riverside Colony | Aberdeen, Huron | 80 | 0 | 0 |
| Our Home Inc | County of Beadle | 75 | 0 | 0 |
| Ree Heights | Ree Heights | 70 | 0 | 0 |
| S Spink/n Beadle Rws | Counties of Beadle, Spink | 70 | 0 | 0 |
| Chuck Wagon Cafe | County of Beadle | 60 | 0 | 0 |
| Huron Colony West | County of Beadle | 60 | 0 | 0 |
| Magness Livestock Cafe | County of Beadle | 40 | 0 | 0 |
| Broadland | County of Beadle | 35 | 0 | 0 |
| Virgil | County of Beadle | 33 | 0 | 0 |
| Sunshine Bible Elementary | County of Hand | 33 | 0 | 0 |
| Gfp 3-b/lake Louise East | County of Hand | 25 | 0 | 0 |
| Moose Lodge | Huron | 25 | 0 | 0 |
| Farmland Industries | Huron | 25 | 0 | 0 |
| Gfp 3-c/lake Louise Shop | County of Hand | 25 | 0 | 0 |
| Gfp 3-e/lake Byron Lua | County of Beadle | 25 | 0 | 0 |
| Gfp 3-f/rosehill | County of Hand | 3 | 0 | 0 |
| Gfp 3-a/lake Louise West | County of Hand | 1 | 0 | 0 |