Public Water Systems
4,181 active public water systems in OH, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Jefferson Lodge Mobile Home | West Jefferson, OH | 400 | 30 | - |
| Voyager Village MHP | Maumee, OH | 400 | 222 | - |
| The Ridge Church | Brookville, OH | 400 | 7 | - |
| Mid-Ohio Sports Infield PWS | Lexington, OH | 400 | 4 | - |
| Lake Erie Utilities Company | Middle Bass, OH | 400 | 309 | - |
| Buckeye Trails - L | Orem, OH | 400 | 58 | - |
| Circle K 5363-Randolph | Akron, OH | 400 | 34 | - |
| St Joseph Catholic Church - Ft Jennings | Fort Jennings, OH | 400 | 23 | - |
| Congress Lake Club-Clubhouse | Hartville, OH | 400 | 11 | - |
| Tommys Crazy Chicken | Hartville, OH | 400 | 34 | - |
| Grace Petroleum - Fohl Road Sunoco PWS | Canton, OH | 400 | 112 | - |
| Tall Timber Lake Camp -Concessions PWS | New Philadelphia, OH | 400 | 6 | - |
| Kidron Mennonite Church | Kidron, OH | 400 | 26 | - |
| Crossroads Community Church PWS | Doylestown, OH | 400 | 11 | - |
| Green Leaf Restaurant PWS | Wooster, OH | 400 | 12 | - |
| Tontogany Village | Tontogany, OH | 400 | 20 | - |
| Holden Arboretum | Kirtland, OH | 398 | 318 | - |
| Sacred Heart School | Shelby, OH | 398 | 170 | - |
| South Solon Village PWS | South Solon, OH | 395 | 134 | - |
| South Vienna Village PWS | South Vienna, OH | 393 | 232 | - |
| 7-Eleven #36218 PWS | Columbus, OH | 390 | 57 | - |
| Bellstores Stone Creek PWS | Massillon, OH | 390 | 0 | - |
| Clays Park Resort - Water Feature | North Lawrence, OH | 388 | 0 | - |
| College Corner Water | College Corner, OH | 387 | 51 | - |
| Church of the Saviour | Wooster, OH | 385 | 70 | - |
| Clarington Village PWS | Clarington, OH | 384 | 158 | - |
| Clark County Rockway PWS | Springfield, OH | 383 | 9 | - |
| Bobs Nickel Saver PWS | Lewisburg, OH | 380 | 19 | - |
| Timmons Elementary School | Chagrin Falls, OH | 375 | 245 | Clean |
| Countryside Estates | Morgantown, OH | 375 | 36 | - |
| Southeast Middle School PWS | Ravenna, OH | 375 | 265 | - |
| Shelby County Water and Sewer PWS | Minster, OH | 375 | 32 | - |
| Fellowship Baptist Church-Canton PWS | Canton, OH | 375 | 11 | - |
| Smithville Apostolic Christian Church Pw | West Salem, OH | 375 | 0 | - |
| Bailey Lakes Village | West Salem, OH | 374 | 96 | - |
| St Louisville Village PWS | Newark, OH | 374 | 35 | - |
| Darbydale Elementary School PWS | Grove City, OH | 370 | 12 | - |
| Tcmsd-Wainwright PWS | Bolivar, OH | 370 | 23 | - |
| Jersey Baptist Church | New Albany, OH | 368 | 124 | - |
| Geauga Co Public Library Bainbridge PWS | Chardon, OH | 364 | 0 | - |
| Old Straitsville-Rockbridge | Logan, OH | 361 | 20 | - |
| Ridgedale Elementary School | Morral, OH | 361 | 21 | - |
| Procter N Gamble Dist Ctr - Lima | Lima, OH | 360 | 4 | - |
| Holloway Public Water System | Holloway, OH | 360 | 71 | - |
| Munson Elementary School | Chardon, OH | 360 | 40 | - |
| Mayfield Utd. Methodist Church & Daycare | Chesterland, OH | 360 | 21 | - |
| Bowersville Village PWS | Bowersville, OH | 360 | 76 | - |
| Spring Valley Estates MHP | Maumee, OH | 360 | 183 | - |
| Zaleski Village PWS | Zaleski, OH | 360 | 74 | - |
| Victory Christian School | Urbana, OH | 359 | 1,095 | - |