Public Water Systems
3,967 active public water systems in IN, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Sun Aura Resort | Lake Village, IN | 303 | 235 | - |
| Sunrise Christian Church | Lafayette, IN | 303 | 22 | - |
| Dyer Indoor Soccer Arena | Dyer, IN | 302 | 17 | - |
| Gurdwara Sikh Satsang of Indianapolis | Indianapolis, IN | 302 | 0 | - |
| Crossbridge Community Church | Fort Wayne, IN | 300 | 9 | - |
| Zion Evangelical Luthrn Church Friedheim | Decatur, IN | 300 | 34 | - |
| Cedar Creek Church of Christ DC | Leo, IN | 300 | 114 | - |
| Joyland Park LLC Dba Tall Sycamore Cpgd | Rochester, IN | 300 | 31 | - |
| Jimtown Baseball and Softball Complex | Elkhart, IN | 300 | 261 | - |
| Washington Township Community Park | Avon, IN | 300 | 24 | - |
| Bloomfield Elementary School | Bryant, IN | 300 | 254 | - |
| Yankee Park Co-Op Inc. | Fort Wayne, IN | 300 | 21 | - |
| Kingdom Hall of Jehovah's Witnesses | Indianapolis, IN | 300 | 0 | - |
| Raceway Petro Inc. | Indianapolis, IN | 300 | 30 | - |
| New Hope Christian Church/Sanctuary | Crawfordsville, IN | 300 | 9 | - |
| Saint Gaspar del Bufalo Catholic Church | Rome City, IN | 300 | 14 | - |
| Harpers Lake Campground | Fort Wayne, IN | 300 | 38 | - |
| Kraft Heinz Food Company | Kendallville, IN | 300 | 175 | - |
| St. Andrews Greek Orthodox Church | South Bend, IN | 300 | 330 | - |
| HI-Vue Campground | Auburn, IN | 300 | 48 | - |
| The Barn | Lafayette, IN | 300 | 18 | - |
| Gathering Acres Event Center | Lafayette, IN | 300 | 33 | - |
| Sharp Creek Elementary School | Wabash, IN | 300 | 103 | - |
| Buffalo Stop N Shop | Buffalo, IN | 300 | 189 | - |
| I.b. Crow Campground | Monticello, IN | 300 | 45 | - |
| Earl Park Municipal Water Utility | Earl Park, IN | 300 | 690 | - |
| Duneland Beach Association | Michigan City, IN | 300 | 32 | - |
| Blue Ridge Mobile Home Park | Auburn, IN | 300 | 173 | - |
| The Wooded Knot | Tippecanoe, IN | 299 | 6 | - |
| Wingate Water Works | Roachdale, IN | 299 | 29 | - |
| Crossroads Community Church/Daycare | Goshen, IN | 298 | 74 | - |
| Fellowship Baptist Church | Portland, IN | 294 | 246 | - |
| Crane Water Works | Loogootee, IN | 293 | 54 | - |
| Pathway Church | Warsaw, IN | 291 | 0 | - |
| Loves Travel Stop #451 | Indianapolis, IN | 290 | 126 | - |
| Eastpointe Bible Church | Peru, IN | 290 | 52 | - |
| Mint Leaf Plaza | Knox, IN | 290 | 40 | - |
| Countryview Farms | Farmington Hills, IN | 290 | 38 | - |
| Hazleton Water Department | Hazleton, IN | 288 | 258 | - |
| Sugar Creek Elementary | Crawfordsville, IN | 286 | 90 | - |
| York Elementary School | Middlebury, IN | 285 | 46 | - |
| Renaissance Academy | Laporte, IN | 285 | 1,552 | - |
| Vulcraft | St. Joe, IN | 281 | 22 | - |
| Pretty Lake Golf Club | Plymouth, IN | 280 | 109 | - |
| Granger Christian School | Niles, IN | 280 | 147 | - |
| Wolf Lake Elementary School | Albion, IN | 278 | 25 | - |
| Three Point Lake | Mooresville, IN | 277 | 163 | - |
| Wawasee Community Bible Church | Milford, IN | 275 | 83 | - |
| Lighthouse Restaurant at Paradise Cove | Cedar Lake, IN | 275 | 34 | - |
| South Bend Country Club | South Bend, IN | 275 | 46 | - |