Public Water Systems
1,795 active public water systems in IA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Kingdom Hall | Strawberry Point, IA | 80 | 83 | - |
| Yellow River State Forest | Harpers Ferry, IA | 80 | 30 | - |
| Clayton Hills Campground | Garnavillo, IA | 80 | 123 | - |
| Saratoga Community Church | Lime Springs, IA | 80 | 176 | - |
| Timber Trail Homeowners Association | Iowa City, IA | 80 | 72 | - |
| Far Horizons Subdivision | Oxford, IA | 80 | 107 | - |
| Fisher Well Owners Association | Oxford, IA | 80 | 2 | - |
| Riverview Ridge Campgrounds | Cascade, IA | 80 | 16 | - |
| Woodlyn Hills | Whittemore, IA | 80 | 81 | - |
| Big Creek Bluffs | Cedar Rapids, IA | 80 | 111 | - |
| Spring Valley Bible Camp | Muscatine, IA | 80 | 72 | - |
| Carriage Meadows Homeowners Association | Bettendorf, IA | 80 | 15 | - |
| New Cooperative, Inc (Roelyn) | Moorland, IA | 80 | 195 | - |
| Craig Water Works | Craig, IA | 79 | 54 | - |
| Deer Hunters Run | Ankeny, IA | 78 | 15 | - |
| Orchard View Estates | Iowa City, IA | 78 | 7 | - |
| Orchard Heights Subdivision | Oxford, IA | 78 | 24 | - |
| Scenic View Estates | Fredericksburg, IA | 78 | 100 | - |
| Morwood Campground | Hazleton, IA | 77 | 12 | - |
| Bulgers Hollow Recreation Area | Thomson, IA | 77 | 86 | - |
| Camp Granada | Dubuque, IA | 76 | 73 | - |
| Swan Water Works | Swan, IA | 76 | 85 | - |
| Broken Paddle Lodge & RV Park LLC | Lansing, IA | 75 | 0 | - |
| NE Iowa Christian Service Camp | Dumont, IA | 75 | 61 | - |
| Rj Thomas Manufacturing Co Inc | Cherokee, IA | 75 | 37 | - |
| Twin Ponds West - Chickasaw Ccb | Ionia, IA | 75 | 93 | - |
| Offside Bar & Grill | Dubuque, IA | 75 | 2 | - |
| Tuttle Lake-Emmet Conservation | Wallingford, IA | 75 | 30 | - |
| Beeds Lake Home Owners Association | Hampton, IA | 75 | 143 | - |
| Fox Lake RV Park LLC | Omaha, IA | 75 | 0 | - |
| Syngenta Seeds LLC | Lone Tree, IA | 75 | 69 | - |
| Bertram Water Supply | Van Horne, IA | 75 | 0 | - |
| Hickory Hills Subdivision #1 | Davenport, IA | 75 | 37 | - |
| Pathway Christian School | Kalona, IA | 75 | 105 | - |
| Iowa Cage Free - Thompson | Thompson, IA | 75 | 18 | - |
| Ridge Haven Inc | Walker, IA | 74 | 92 | - |
| Matlock Water Supply | Matlock, IA | 74 | 15 | - |
| Timber Valley Estates (Third Addition) | Blue Grass, IA | 73 | 341 | - |
| Sherman Place Water & Road, Inc. | Fredericksburg, IA | 73 | 141 | - |
| St. Luke Church | Protivin, IA | 72 | 25 | - |
| Fairview Terrrace Mobile Home Park LLC | Oviedo, IA | 72 | 34 | - |
| Brittany Estates Homeowners Association | Cedar Rapids, IA | 72 | 249 | - |
| Midway Water and Lighting | Hiawatha, IA | 72 | 841 | - |
| Trout Valley Homes Assoc. 1 | Leclaire, IA | 72 | 160 | - |
| The Junction Bar & Grill | Riverside, IA | 72 | 25 | - |
| Jackson Heights Golf Course | Jackson Junction, IA | 72 | 37 | - |
| Oto Water Supply | Oto, IA | 72 | 82 | - |
| Browns Lake Bigelow Park | Sioux City, IA | 72 | 0 | - |
| Immanuel Reformed Church | Belmond, IA | 72 | 4 | - |
| Red Barn Resort and Campground LLC | Lansing, IA | 71 | 123 | - |