We found 36 public water systems in Spencer county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Reo Water Corporation | Richland City | 3,875 | 0 | 14 |
| Santa Claus Water Utility | Santa Claus | 3,683 | 0 | 42 |
| Rockport Water | Rockport | 2,520 | 0 | 129 |
| Finch Newton Water, Inc. | Grandview | 1,775 | 0 | 20 |
| Dale Water Works | Dale | 1,635 | 0 | 29 |
| Gentryville Water Utility | Gentryville | 1,600 | 0 | 7 |
| Santa La Hill, Inc. | Lamar | 1,094 | 0 | 0 |
| Chrisney Water Department | Chrisney | 813 | 0 | 46 |
| Grandview Municipal Water Utility | Grandview | 805 | 0 | 11 |
| American Electric Power - Rockport Plant | Rockport | 740 | 0 | 0 |
| St. Meinrad Utilities, Inc. | St. Meinrad | 658 | 0 | 3 |
| Allo's | County of Spencer | 600 | 0 | 0 |
| St. Meinrad Archabbey | St. Meinrad | 300 | 0 | 0 |
| Lincoln State Park | Rockport | 200 | 0 | 0 |
| American Legion-jenkins Post 254 | Rockport | 190 | 0 | 46 |
| Erwin's Restaurant | County of Spencer | 150 | 0 | 0 |
| Richland United Methodist Ch/day Care | County of Spencer | 150 | 0 | 0 |
| The Rustic, Llc | Rockport | 80 | 0 | 0 |
| Lincoln Hills Baptist Church | County of Spencer | 60 | 0 | 0 |
| Holy Cross Lutheran Church | Rockport | 60 | 0 | 0 |
| Los Panchos Restaurant | Rockport | 52 | 0 | 0 |
| Chicks Inn | County of Spencer | 50 | 0 | 0 |
| Dairy Queen | Rockport | 50 | 0 | 0 |
| Country Kitchen | County of Spencer | 50 | 0 | 0 |
| American Electric Power-honey Creek Farm | Rockport | 49 | 0 | 0 |
| Sunset Lake | County of Spencer | 40 | 0 | 0 |
| Millgrove Umc | County of Spencer | 40 | 0 | 0 |
| Oakridge Campground/park | Rockport | 36 | 0 | 0 |
| Kingdom Hall Of Jehovahs Witnesses | County of Spencer | 35 | 0 | 0 |
| Indiana Bell Telephone Co.' | Rockport | 30 | 0 | 0 |
| Hardtimes Saloon | County of Spencer | 25 | 0 | 0 |
| Hatfield Exit Saloon, Inc. | County of Spencer | 25 | 0 | 0 |
| Sunset Lake | County of Spencer | 25 | 0 | 0 |
| Sceptre Mechanical & Mpw Industrial Srvc | Rockport | 25 | 0 | 0 |
| Fellowship Baptist Church | County of Spencer | 25 | 0 | 0 |
| Landmark Apostolic Bible Church/school | County of Spencer | 25 | 0 | 0 |