We found 38 public water systems in Fall River county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Hot Springs | Hot Springs | 3,711 | 0 | 3 |
| Edgemont | Edgemont | 774 | 0 | 202 |
| Fall River Wud-south | Oral | 648 | 0 | 55 |
| Hot Springs Va Center | Hot Springs | 445 | 0 | 73 |
| Southern Black Hills Water | Buffalo Gap, Hot Springs | 350 | 0 | 0 |
| Gfp 13-c/angostura Cascade Campgroun | County of Fall River | 225 | 0 | 0 |
| State Veterans Home | Hot Springs | 205 | 0 | 48 |
| Gfp 13-e/angostura Horsehead Campgro | County of Fall River | 200 | 0 | 0 |
| Cheyenne River Cpgd, Edgemont | County of Fall River | 175 | 0 | 0 |
| Sheps Canyon Cove Mhc | Hot Springs | 167 | 0 | 12 |
| Big Bats | County of Fall River | 150 | 0 | 0 |
| Horsehead Resort | County of Fall River | 144 | 0 | 0 |
| Oelrichs | Oelrichs | 126 | 0 | 25 |
| Angostura Den | County of Fall River | 102 | 0 | 0 |
| Va Center,c.r.weldy,engr Serv | County of Fall River | 100 | 0 | 0 |
| Fall River Wud-north | Oral | 100 | 0 | 0 |
| Gfp 13-a/angostura Shelter Point | County of Fall River | 100 | 0 | 0 |
| Brainerd Indian School | Hot Springs | 100 | 0 | 0 |
| Silver King Mines | Edgemont | 95 | 0 | 0 |
| Country Club Estates | Hot Springs | 83 | 0 | 0 |
| Coffee Cup Fuel Stop #9 | County of Fall River | 75 | 0 | 0 |
| Summer Sun Resort | County of Fall River | 70 | 0 | 0 |
| Merchen's Mobile Home Acres | Hot Springs | 68 | 0 | 0 |
| Provo | Provo | 60 | 0 | 0 |
| Hot Springs Koa | County of Fall River | 57 | 0 | 0 |
| Ponderosa Subdivision | County of Fall River | 50 | 0 | 0 |
| Gfp 13-d/angostura Shop Hq/cheyenne | County of Fall River | 50 | 0 | 0 |
| Oral Elementary School | County of Fall River | 47 | 0 | 0 |
| Provo Area Water System | Edgemont | 42 | 0 | 0 |
| The Country Club | Hot Springs | 35 | 0 | 0 |
| Heartland Restaurant And Lounge | County of Fall River | 33 | 0 | 0 |
| Green Acres Water Corporation | Hot Springs | 31 | 0 | 0 |
| Coe-cold Brook Office | County of Fall River | 25 | 0 | 0 |
| Usfs-bgng French Creek Picnic Area | County of Fall River | 25 | 0 | 0 |
| Wilhelm Court | Hot Springs | 25 | 0 | 0 |
| Coe-cottonwood Springs | Chamberlain, Hot Springs | 25 | 0 | 0 |
| Coe-cold Brook Recreation Area-beach | County of Fall River | 10 | 0 | 0 |
| Coe-cold Brook Recreation Area-cg | County of Fall River | 10 | 0 | 0 |