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 |
| Parkview Medical Group - Shipshewana | Lagrange, IN | 34 | 28 | - |
| East Townline Amish School | Lagrange, IN | 34 | 7 | - |
| Rome City Town Hall | Rome City, IN | 34 | 14 | - |
| Stony Acres Parochial Amish School | Ligonier, IN | 34 | 10 | - |
| Andersons Winery & Vineyard | Valparaiso, IN | 34 | 14 | - |
| Trailer Transit, Inc. | Porter, IN | 34 | 3 | - |
| Lazy Days Campground | Monrovia, IN | 34 | 18 | - |
| Cloverdale RV Park | Cloverdale, IN | 34 | 154 | - |
| Walnut Grove Campgrounds | Shelbyville, IN | 34 | 123 | - |
| Wayne County Highway Dept. | Centerville, IN | 34 | 115 | - |
| Guernsey Church of Brethren | Monticello, IN | 34 | 97 | - |
| Cedar Gardens MHP | Cedar Lake, IN | 34 | 77 | - |
| Willow Creek Crossing | Elmhurst, IN | 34 | 569 | - |
| Liberty Country Club- Housing Develop. | Liberty, IN | 34 | 12 | - |
| Eagles Lodge #450 | Noblesville, IN | 33 | 269 | - |
| All My Family & Friends Campground-Back | Straughn, IN | 33 | 23 | - |
| Los Cabritos | Leesburg, IN | 33 | 602 | - |
| Nappanee Tlc Care Center | Millersburg, IN | 33 | 0 | - |
| Siler Addition Way | Pierceton, IN | 33 | 81 | - |
| Sunrise Ridge Amish School | Lagranger, IN | 33 | 3 | - |
| Leisure Acres (Twin Mills Resort) | South Bend, IN | 33 | 34 | - |
| Southeast Family Dental | Indianapolis, IN | 33 | 20 | - |
| Maximum Power Sports Inc | Peru, IN | 33 | 13 | - |
| RV Dynasty | Bunker Hill, IN | 33 | 82 | - |
| Spring Lake, LLC | Mooresville, IN | 33 | 128 | - |
| Westside Properties LLC | Crown Point, IN | 33 | 68 | - |
| Lost Pines - Southeast Well | Houston, IN | 33 | 45 | - |
| Lost Pines - Northwest Well | Houston, IN | 33 | 33 | - |
| Cope Environmental Center | Centerville, IN | 33 | 7 | - |
| Renegade RV Plant 1 | Bristol, IN | 32 | 15 | - |
| Triple Bend Amish School | Middlebury, IN | 32 | 0 | - |
| Veada Industries, Inc. - Woodshop #3 | New Paris, IN | 32 | 39 | - |
| Fulton Pub | Fulton, IN | 32 | 39 | - |
| Locust Grove Amish Parochial School | New Castle, IN | 32 | 219 | - |
| Royal Hylands Golf Course | Knightstown, IN | 32 | 35 | - |
| Cornerstone Alliance Church | Roanoke, IN | 32 | 53 | - |
| Anytime Fitness | Demotte, IN | 32 | 28 | - |
| Zimmer Biomet, Inc. - Building C | Warsaw, IN | 32 | 20 | - |
| Clear Creek Amish School | Topeka, IN | 32 | 12 | - |
| Ontario Acres Amish School | Lagrange, IN | 32 | 9 | - |
| Cedar Creek Family Golf Center | Cedar Lake, IN | 32 | 166 | - |
| The Rejoicing Vine | Carmel, IN | 32 | 0 | - |
| Doane-Keyes Associates | Peru, IN | 32 | 0 | - |
| Willow Slough Shooting Complex | Morocco, IN | 32 | 22 | - |
| Metzger Dairy | Kimmell, IN | 32 | 0 | - |
| Spencer Conservation Club | Spencer, IN | 32 | 153 | - |
| Pine Woods 9-Hole Golf Course | Spencer, IN | 32 | 39 | - |
| Fort Knox Paintball, Inc. | Valparaiso, IN | 32 | 3 | - |
| Cp Industries | Granger, IN | 32 | 172 | - |
| Midwest Eye Consultants | Wabash, IN | 32 | 103 | - |