Public Water Systems
654 active public water systems in SD, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Winner | Winner, SD | 2,921 | 37 | - |
| Kingbrook III Rural Water System | Arlington, SD | 2,888 | 0 | - |
| Aurora-Brule Rural Water System | Kimball, SD | 2,750 | 85 | - |
| Kingbrook II Rural Water System | Arlington, SD | 2,715 | 5 | - |
| Hanson Rural Water System | Emery, SD | 2,685 | 14 | - |
| Lennox | Lennox, SD | 2,571 | 20 | - |
| Wr/Lj - North Stanley County | Murdo, SD | 2,492 | 2 | - |
| Sisseton | Sisseton, SD | 2,479 | 13 | - |
| Chamberlain | Chamberlain, SD | 2,473 | 56 | - |
| Flandreau | Flandreau, SD | 2,372 | 24 | - |
| Beresford | Beresford, SD | 2,359 | 2 | - |
| Volga | Volga, SD | 2,340 | 16 | - |
| Clark Rural Water System | Clark, SD | 2,325 | 68 | - |
| Redfield | Redfield, SD | 2,214 | 7 | - |
| Tri-County Rural Water System | Eagle Butte, SD | 2,190 | 172 | Clean |
| Elk Point | Elk Point, SD | 2,124 | 87 | - |
| Fort Pierre | Fort Pierre, SD | 2,115 | 40 | - |
| Springfield | Springfield, SD | 2,108 | 61 | - |
| Laughing Water Restaurant at Crazy H | Crazy Horse, SD | 2,055 | 81 | - |
| Custer | Custer, SD | 1,919 | 112 | - |
| Webster | Webster, SD | 1,696 | 14 | - |
| Parkston | Parkston, SD | 1,567 | 50 | - |
| Martin | Martin, SD | 1,500 | 116 | - |
| Wagner | Wagner, SD | 1,490 | 19 | - |
| Butte-Meade Swd-Bean Well | Newell, SD | 1,481 | 100 | - |
| Clay RWS/South Union | Wakonda, SD | 1,447 | 331 | - |
| Nps-Wind Cave National Park | Hot Springs, SD | 1,404 | 11 | - |
| Groton | Groton, SD | 1,380 | 14 | - |
| Crooks | Crooks, SD | 1,362 | 100 | - |
| Miller | Miller, SD | 1,349 | 22 | - |
| Freeman | Freeman, SD | 1,329 | 28 | - |
| Salem | Salem, SD | 1,325 | 87 | - |
| Baltic | Baltic, SD | 1,271 | 66 | - |
| Platte | Platte, SD | 1,256 | 29 | - |
| Lakota Tech High School | Batesland, SD | 1,250 | 0 | - |
| Garretson | Garretson, SD | 1,228 | 241 | - |
| Gregory | Gregory, SD | 1,221 | 84 | - |
| Clear Lake | Clear Lake, SD | 1,218 | 15 | - |
| Britton | Britton, SD | 1,215 | 78 | - |
| Aurora | Aurora, SD | 1,200 | 33 | - |
| Colonial Pine Hills Sanitary Distric | Rapid City, SD | 1,200 | 80 | - |
| Chapel Lane Water Company | Rapid City, SD | 1,200 | 8 | - |
| Wr/Lj - Creighton Project | Philip, SD | 1,170 | 0 | - |
| Reptile Gardens Inc | Rapid City, SD | 1,169 | 12 | - |
| Gettysburg | Gettysburg, SD | 1,162 | 19 | - |
| Deadwood | Deadwood, SD | 1,156 | 15 | - |
| Lemmon | Lemmon, SD | 1,156 | 105 | - |
| Clark | Clark, SD | 1,148 | 20 | - |
| Northdale Sanitary District | Piedmont, SD | 1,075 | 14 | - |
| Fall River Wud | Oral, SD | 1,057 | 135 | - |