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 |
| Spring Valley Campground Inc. | Norman, IN | 46 | 143 | - |
| Wheatfield Public Library | Rensselaer, IN | 46 | 0 | - |
| First Mount Pleasant Baptist Church | Franklin, IN | 46 | 23 | - |
| Lakeland Conservative Grace Brethren | Warsaw, IN | 46 | 105 | - |
| Rock Run Amish School | Topeka, IN | 46 | 100 | - |
| Wible Lumber, Inc. | South Milford, IN | 46 | 159 | - |
| Prairie View Amish School | Lagrange, IN | 46 | 7 | - |
| Meadow View Amish School | Topeka, IN | 46 | 40 | - |
| Rush Shelby Energy County Headquarters | Manilla, IN | 46 | 18 | - |
| Ross Camp | West Lafayette, IN | 46 | 21 | - |
| Chiafos Resorts | Monticello, IN | 46 | 191 | - |
| Pinecrest/Stuckman Mobile Home Parks | Syracuse, IN | 46 | 8 | - |
| Lake of the Woods MHP | Hudson, IN | 46 | 147 | - |
| Sacred Heart Apostolic School | Rolling Prairie, IN | 46 | 137 | - |
| Christian Mission Fellowship | Bluffton, IN | 45 | 3 | - |
| Affolder Implement Sales Inc | Berne, IN | 45 | 3 | - |
| Amish Country Popcorn | Berne, IN | 45 | 0 | - |
| Pleasant Mills Amish School | Decatur, IN | 45 | 6 | - |
| Timber Valley Amish School | Monroe, IN | 45 | 4 | - |
| Living Faith Church | Flora, IN | 45 | 63 | - |
| Moose Lodge | Frankfort, IN | 45 | 55 | - |
| Tri Star Glove | Plainville, IN | 45 | 381 | - |
| United Trailers, Inc. | Bristol, IN | 45 | 65 | - |
| 21781 Omega CT., LLC | Goshen, IN | 45 | 48 | - |
| Custom Curve Cabinetry LLC Plant 1 | Bristol, IN | 45 | 88 | - |
| Bible Way Apostolic | Nappanee, IN | 45 | 181 | - |
| Victory Chapel G.b.c., Inc. | Osceola, IN | 45 | 102 | - |
| Subway | Sweetser, IN | 45 | 79 | - |
| Mt. Gilead Baptist Church | Hemlock, IN | 45 | 110 | - |
| Limberlost Amish School | Bryant, IN | 45 | 138 | - |
| Free United Baptist Church | Warsaw, IN | 45 | 13 | - |
| Sunny Meadow Amish School | Nappanee, IN | 45 | 3 | - |
| Bay Point Condos - Phase II | Syracuse, IN | 45 | 9 | - |
| Calvary United Methodist | Syracuse, IN | 45 | 22 | - |
| Little New York | Leesburg, IN | 45 | 313 | - |
| Seymour Midwest Rake | Leesburg, IN | 45 | 103 | - |
| Honeyville Amish School | Topeka, IN | 45 | 30 | - |
| Shipshe View Amish School | Shipshewana, IN | 45 | 0 | - |
| Eden Ridge Amish School | Topeka, IN | 45 | 9 | - |
| Cedar Lake Yacht Club | Cedar Lake, IN | 45 | 130 | - |
| Flying J - J Care | McClure, IN | 45 | 22 | - |
| First Freewill Baptist Church | Hamlet, IN | 45 | 9 | - |
| Twisted Tiki | Walkerton, IN | 45 | 83 | - |
| Bane-Welker Equipment | Plymouth, IN | 45 | 6 | - |
| Campers Roost Campground | Plymouth, IN | 45 | 161 | - |
| Garden Gate Greenhouse | Peru, IN | 45 | 12 | - |
| Engaging Minds Autism Services | Kokomo, IN | 45 | 4 | - |
| Indiana Oaks Golf Club | Logansport, IN | 45 | 86 | - |
| Friendship Baptist Church | Crawfordsville, IN | 45 | 18 | - |
| Indian Oaks Campground - Playground | Quincy, IN | 45 | 26 | - |