We found 41 public water systems that could serve the same population as Elk Rock Park - Bridge Area (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Pella Water Works Department | Pella | 10,352 | 40 | 25 |
| Knoxville Water Works | Knoxville | 8,118 | 0 | 2 |
| Marion Co. Rural Water District | Knoxville | 5,243 | 0 | 1 |
| Pleasantville Water Works | Pleasantville | 1,694 | 0 | 1 |
| Melcher-dallas Water Supply | Melcher-dallas | 1,288 | 0 | 7 |
| Melcher Water Supply | County of Marion | 900 | 0 | 0 |
| Twin Cedars Community Schools | County of Marion | 650 | 0 | 0 |
| Wallashuck Park | County of Marion | 500 | 0 | 0 |
| Irua - Pershing Utilities | Pershing | 462 | 0 | 1 |
| Dallas Municipal Water Supply | County of Marion | 451 | 0 | 0 |
| Otley Public Utilities Inc | Otley | 440 | 0 | 0 |
| Bussey Water Supply | Bussey | 422 | 0 | 21 |
| Twin Cedars Community Schools | County of Marion | 400 | 0 | 0 |
| Whitebreast Park | County of Marion | 308 | 0 | 0 |
| Tracy Water Supply | Tracy | 300 | 0 | 0 |
| Harvey Water Works | Harvey | 235 | 0 | 3 |
| North Corp Water | Pleasantville | 180 | 0 | 0 |
| Marion County Conservation | County of Marion | 150 | 0 | 0 |
| Hamilton Water Supply | Hamilton | 144 | 0 | 0 |
| Park Hills Utility | Otley | 141 | 0 | 0 |
| Peoria Christian School & Church | County of Marion | 99 | 0 | 0 |
| Martinaches Mobil Home Park | County of Marion | 80 | 0 | 0 |
| Red Rock Lakeview Water Assoc | County of Marion | 80 | 0 | 0 |
| Swan Water Works | Swan | 72 | 0 | 0 |
| J & L Saloon & Restaurant | County of Marion | 65 | 0 | 0 |
| Morrison Implement | County of Marion | 50 | 0 | 0 |
| Red Rock Dam Corp. Of Engineer | County of Marion | 50 | 0 | 0 |
| Knoxville Estates | County of Marion | 45 | 0 | 0 |
| Pella Community Schools | County of Marion | 45 | 0 | 0 |
| Elk Rock State Park South | County of Marion | 45 | 0 | 0 |
| Knoxville Estates | Knoxville | 45 | 0 | 0 |
| Keener Oil & Cafe | County of Marion | 45 | 0 | 0 |
| South Shore Heights | County of Marion | 40 | 0 | 0 |
| Howell Station | County of Marion | 25 | 0 | 0 |
| Dallas-melcher Water System | County of Marion | 25 | 0 | 0 |
| Keener's Hy-way Station | County of Marion | 25 | 0 | 0 |
| Elk Rock State Park-south (equestrian) | County of Marion | 25 | 0 | 0 |
| Elk Rock State Park-west | County of Marion | 25 | 0 | 0 |
| J B's | County of Marion | 25 | 0 | 0 |
| Clark & Son Sale Barn | County of Marion | 25 | 0 | 0 |
| Hi Vu Drive In Theater | County of Marion | 25 | 0 | 0 |