Public Water Systems
2,005 active public water systems in ID, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Bethel Baptist Church | Rigby, ID | 50 | 37 | - |
| Camas National Wildlife Refuge | Pocatello, ID | 50 | 7 | - |
| Rameys Broken Arrow | Gibbonsville, ID | 50 | 28 | - |
| Usfs North Fork Administrative Site | Salmon, ID | 50 | 64 | - |
| Shepherd of the Valley Church | Salmon, ID | 50 | 24 | - |
| Waters Edge RV Park & Pizzeria | Northfork, ID | 50 | 34 | - |
| Hillview Subd | Rexburg, ID | 50 | 91 | - |
| Mother Hibbards | Rexburg, ID | 50 | 61 | - |
| Big Juds Well | Rexburg, ID | 50 | 27 | - |
| Sky Mountain Ranch | Victor, ID | 50 | 44 | - |
| Teton Valley Lodge | Driggs, ID | 50 | 64 | - |
| Badger Creek Outdoor Center-5191009 | Rexburg, ID | 50 | 23 | - |
| The Learning Academy | Driggs, ID | 50 | 605 | - |
| Pinewood Water System | Priest River, ID | 49 | 5 | - |
| State Line Village | Post Falls, ID | 49 | 21 | - |
| Forrey Heights | Kuna, ID | 49 | 38 | - |
| Usfs Stanley Office | Jerome, ID | 49 | 28 | - |
| Nebels Addition Homeowners | Worley, ID | 48 | 0 | - |
| Lindenwood Water Assn | Nampa, ID | 48 | 73 | - |
| Vanal Heights Well Assn | Caldwell, ID | 48 | 93 | - |
| Moose Knuckle | Coolin, ID | 47 | 48 | - |
| Magic Westside Water Users Inc | Bellevue, ID | 47 | 31 | - |
| Northview Subdivision | Hagerman, ID | 47 | 20 | - |
| Usfs Howard Springs Picnic Ground | Ashton, ID | 47 | 5 | - |
| Salmon River Meadows Mutual Water Compan | Salmon, ID | 47 | 30 | - |
| Bennett Bay Inn | Coeur D' Alene, ID | 46 | 133 | - |
| Flying W Ranch | Athol, ID | 46 | 0 | - |
| Trails End Estates | Post Falls, ID | 46 | 9 | - |
| Rolling Meadows Ranch | Athol, ID | 46 | 23 | - |
| Amy Trailer Park | Boise, ID | 46 | 29 | - |
| Eagle Point Community | Eagle, ID | 46 | 45 | - |
| Usda Ars | Kimberly, ID | 46 | 104 | - |
| Idpr Mission Mountain Water System | Plummr, ID | 45 | 0 | - |
| Berry Patch Water Acres Assn | Athol, ID | 45 | 15 | - |
| Warren Water System | Coolin, ID | 45 | 18 | - |
| Eastport Union Pacific Railroad | Salt Lake City, ID | 45 | 16 | - |
| Ranch Valley Water Assn | Rathdrum, ID | 45 | 25 | - |
| Henry Point HOA Inc | Hayden, ID | 45 | 16 | - |
| E Shoshone County Water Dist Burke | Wallace, ID | 45 | 5 | - |
| Lakeview Water District | Orofino, ID | 45 | 41 | - |
| Alacca Bible Camp | Harpster, ID | 45 | 106 | - |
| Vanal Heights Sweet Water | Caldwell, ID | 45 | 227 | - |
| Mundo Hot Springs | Cambridge, ID | 45 | 34 | - |
| Idaho Concrete Company | Eagle, ID | 45 | 11 | - |
| Riverview Subd Water Assn | Mountain Home, ID | 45 | 48 | - |
| Gannett Country Club | Picabo, ID | 45 | 0 | - |
| Holiday Highway Subd | Hailey, ID | 45 | 23 | - |
| Fedex Distribution Center Blackfoot | Blackfoot, ID | 45 | 5 | - |
| Old Sawmill Station | Clayton, ID | 45 | 34 | - |
| Hillman Trailer Court | Rigby, ID | 45 | 9 | - |