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 |
|---|---|---|---|---|
| Sergeant Bluff Water Supply | Sergeant Bluff, IA | 5,015 | 22 | Clean |
| Xenia RWD (Boone) | Bouton, IA | 4,975 | 81 | Clean |
| Vinton Municipal Water Dept | Vinton, IA | 4,938 | 28 | Clean |
| Shenandoah Water Dept | Shenandoah, IA | 4,925 | 232 | Clean |
| Humboldt Municipal Water Dept | Humboldt, IA | 4,792 | 10 | Clean |
| Camanche Water Supply | Camanche, IA | 4,570 | 73 | Clean |
| Evansdale Water Works | Evansdale, IA | 4,561 | 29 | Clean |
| Mount Vernon Water Supply | Mount Vernon, IA | 4,527 | 37 | Clean |
| Tiffin Water Supply | Tiffin, IA | 4,512 | 40 | - |
| Dyersville Municipal Water Co | Dyersville, IA | 4,477 | 268 | Clean |
| Anamosa Municipal Water Supply | Anamosa, IA | 4,457 | 137 | Clean |
| Chariton Municipal Water Works | Chariton, IA | 4,381 | 590 | Detected |
| Clarinda Water Plant | Clarinda, IA | 4,372 | 97 | Detected |
| Hampton Muni Water Works | Hampton, IA | 4,337 | 16 | Clean |
| Forest City Water Supply | Forest City, IA | 4,285 | 25 | Clean |
| Huxley Waterworks Dept | Huxley, IA | 4,244 | 19 | Clean |
| Jefferson Water Department | Jefferson, IA | 4,182 | 30 | Clean |
| Carlisle Water Supply | Carlisle, IA | 4,170 | 67 | Detected |
| Regional Water | Avoca, IA | 4,132 | 36 | Clean |
| Sirwa #3 (Osceola) | Creston, IA | 4,080 | 36 | Detected |
| Rock Valley Water Supply | Rock Valley, IA | 4,059 | 97 | Clean |
| Monticello Water Supply | Monticello, IA | 4,040 | 62 | Clean |
| Cresco Waterworks | Cresco, IA | 3,913 | 178 | Clean |
| West Liberty Water Utility | West Liberty, IA | 3,858 | 51 | Clean |
| Worth Co Interchange 214 Water Supply | Manly, IA | 3,850 | 47 | Clean |
| Waukon Water Department | Waukon, IA | 3,827 | 19 | Clean |
| Carter Lake Water District | Carter Lake, IA | 3,791 | 73 | Detected |
| Emmetsburg Municipal Water Department | Emmetsburg, IA | 3,733 | 17 | Clean |
| West Burlington Muni. Water Supply | West Burlington, IA | 3,728 | 58 | Detected |
| Albia Municipal Water Works | Albia, IA | 3,721 | 96 | Detected |
| Osage Municipal Water Supply | Osage, IA | 3,637 | 72 | Detected |
| Eagle Grove Water Supply | Eagle Grove, IA | 3,601 | 16 | Clean |
| West Central Rwa - Nish System | Manning, IA | 3,573 | 79 | Clean |
| Southwest Reg Water District (Red Oak) | Clarinda, IA | 3,500 | 40 | - |
| New Hampton Water Supply | New Hampton, IA | 3,494 | 27 | Clean |
| Xenia RWD (Woodward) | Bouton, IA | 3,465 | 98 | Clean |
| Rural Water System #1 | Hospers, IA | 3,428 | 69 | Clean |
| Story City Water Dept | Story City, IA | 3,357 | 40 | Clean |
| Williamsburg Public Water Supply | Williamsburg, IA | 3,345 | 78 | - |
| Milford Municipal Utilities | Milford, IA | 3,321 | 45 | - |
| Cherokee RWS - Cherokee Subsystem | Cherokee, IA | 3,315 | 5 | - |
| Tipton Water Supply | Tipton, IA | 3,149 | 20 | - |
| Tama Water Supply | Tama, IA | 3,130 | 31 | - |
| Madrid Water Department | Madrid, IA | 3,090 | 18 | - |
| Garner Water Works | Garner, IA | 3,065 | 29 | - |
| Solon Water Dept | Solon, IA | 3,018 | 30 | - |
| John Deere Dubuque Works | Dubuque, IA | 3,000 | 11 | - |
| Southwest Reg Water District (Clarinda) | Clarinda, IA | 2,942 | 163 | - |
| Wilton Water Supply | Wilton, IA | 2,924 | 15 | - |
| Onawa Municipal Water Plant | Onawa, IA | 2,906 | 3 | Clean |