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 |
| Culvers Hill - North Webster | Nappanee, IN | 75 | 942 | - |
| Creekside Mobile Home Park | Indianapolis, IN | 75 | 96 | - |
| Morris Mobile Home Estates | Terre Haute, IN | 75 | 166 | - |
| Shakely LLC Dba Tippy Restaurant & Bar | Delphi, IN | 74 | 86 | - |
| X Y Tool & Die, Inc. | Laotto, IN | 74 | 3 | - |
| New Holland Rochester | Rochester, IN | 74 | 25 | - |
| Hinsey-Brown Funeral Service | Knightstown, IN | 74 | 76 | - |
| Redeemed Fellowship | Michigan City, IN | 74 | 127 | - |
| Blissville Community Church | Plymouth, IN | 74 | 64 | - |
| Oak Grove Missionary Church | Nappanee, IN | 74 | 17 | - |
| Big C Lumber | Granger, IN | 74 | 4 | - |
| Hillcrest Campground | Monticello, IN | 74 | 155 | - |
| Dry Dock Campground & Storage | Huntington, IN | 73 | 37 | - |
| Newton County Public Library - Roselawn | Lake Village, IN | 73 | 4 | - |
| Mt. Zion General Baptist Church | Mt. Vernon, IN | 73 | 20 | - |
| Shepherds Heart Fellowship | Osceola, IN | 73 | 24 | - |
| Riviera Complex | Monticello, IN | 73 | 233 | - |
| Creekside Manor MHP | Lapaz, IN | 73 | 1,992 | - |
| Rupert Ridge Amish School | Grabill, IN | 72 | 0 | - |
| Meshingomesia Country Club | Marion, IN | 72 | 132 | - |
| North Webster Church of the Brethren | North Webster, IN | 72 | 11 | - |
| Tecomet: Twd | Warsaw, IN | 72 | 2 | - |
| Brethren Retreat Center | Shipshewana, IN | 72 | 113 | - |
| Grace Lutheran Church | Dyer, IN | 72 | 60 | - |
| Shellbourne Conference Center | Valparaiso, IN | 72 | 55 | - |
| Pine Creek UMC - Groves | Pine Village, IN | 72 | 100 | - |
| Pine Creek UMC - Timbers | Pine Village, IN | 72 | 103 | - |
| Twin Lakes Youth Sports Complex | Monticello, IN | 72 | 34 | - |
| Bell Center Bible Church | Bell Center, IN | 72 | 57 | - |
| Westridge Amish School | Grabill, IN | 71 | 21 | - |
| Martin Marietta - Noblesville Stone | Carmel, IN | 71 | 16 | - |
| Clunette Elevator Co. Inc. | Leesburg, IN | 71 | 30 | - |
| Krishnas Emerson LLC | Dayton, IN | 71 | 294 | - |
| Turkey Run Golf Club | Waveland, IN | 71 | 213 | - |
| New Hope Church of God | Valparaiso, IN | 71 | 19 | - |
| Faith Christian Chapel | South Bend, IN | 71 | 85 | - |
| St. Peter and Paul Church | South Bend, IN | 71 | 12 | - |
| Cardinal Produce Housing | Oaktown, IN | 71 | 53 | - |
| Eastside Assembly of God | Lafayette, IN | 71 | 147 | - |
| Davis Lakeside Campground | Churubusco, IN | 71 | 48 | - |
| Wabash Valley Amish School | Geneva, IN | 70 | 25 | - |
| Leo Cafe | Leo, IN | 70 | 318 | - |
| Cool Lake Golf Course | Lebanon, IN | 70 | 42 | - |
| Pleasant View Church | Lebanon, IN | 70 | 169 | - |
| Springhill United Presbyterian | Greensburg, IN | 70 | 101 | - |
| McP - Magic Coil Products | Butler, IN | 70 | 118 | - |
| St. Joe Valley Conservation Club | St. Joe, IN | 70 | 41 | - |
| Mt. Pleasant Grocery | Muncie, IN | 70 | 89 | - |
| Pleasant Ridge Christian Fellowship | Middlebury, IN | 70 | 77 | - |
| Forest River Service Center | Mishawaka, IN | 70 | 38 | - |