We found 41 public water systems in Howell county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| West Plains | West Plains | 12,000 | 37 | 9 |
| Mountain View | Mountain View | 2,719 | 0 | 13 |
| Willow Springs | Willow Springs | 2,185 | 0 | 3 |
| Howell Oregon Co Pwsd 2 North | West Plains | 1,896 | 0 | 7 |
| Howell Co Pwsd 3 | Willow Springs | 1,740 | 20 | 6 |
| Howell Oregon 2 West | County of Howell | 912 | 0 | 0 |
| Howell Co Pwsd 1 | Pomona | 845 | 0 | 20 |
| Fairview Elem School | West Plains | 576 | 0 | 0 |
| Richards Elem School | West Plains | 350 | 0 | 0 |
| Hillbilly Junction Rest | Hillbilly Junct | 300 | 0 | 0 |
| Junction Hill Elem School | West Plains | 250 | 0 | 0 |
| South Fork Elem School | County of Howell | 250 | 0 | 10 |
| Ozark Development Corp | West Plains | 250 | 0 | 6 |
| Glenwood Elem School | West Plains | 230 | 0 | 0 |
| Howell Oregon Co Pwsd 2 South | Brandsville | 154 | 0 | 5 |
| Lightning Bowl | County of Howell | 100 | 0 | 0 |
| Country Diner | Country Diner | 100 | 0 | 0 |
| Mobile Estates Mhp | West Plains | 100 | 0 | 0 |
| Reich's Western Kitchen Rest | Western Kitchen | 100 | 0 | 0 |
| Liberty Grove Elem School | Willow Springs | 92 | 0 | 0 |
| Henrys Mobile Home Park | County of Howell | 80 | 0 | 0 |
| Shady Lane Mobile Home Park | County of Howell | 60 | 0 | 0 |
| Ma & Pas Beef Sizzler | County of Howell | 60 | 0 | 0 |
| Roadrunner Rv Park | County of Howell | 60 | 0 | 0 |
| Tjs Pub And Grill | County of Howell | 60 | 0 | 0 |
| Howell Oregon Electric Coop Inc | West Plains | 60 | 0 | 0 |
| Anitas | County of Howell | 52 | 0 | 0 |
| Bullseye 24 | County of Howell | 50 | 0 | 0 |
| Ranch House Restaurant | Ranch House | 50 | 0 | 0 |
| Club 63 Steak House | County of Howell | 50 | 0 | 0 |
| Peace Valley Elem School | Peace Valley | 39 | 0 | 0 |
| Valley Park Mhp | County of Howell | 30 | 0 | 0 |
| Holden Shell | Holden Shell | 25 | 0 | 0 |
| Bosserman Auto And Electr | Peace Valley | 25 | 0 | 0 |
| Oscar's Mobile Home Park | Residents | 25 | 0 | 0 |
| New Hope Baptist Church | County of Howell | 25 | 0 | 0 |
| Chapel Hill Church | Chapel Hill | 25 | 0 | 0 |
| Friendship Baptist Church | Baptist Church | 25 | 0 | 0 |
| Henry's Mobil Home Park | County of Howell | 25 | 0 | 0 |
| Dollar General #18296 - South Fork | County of Howell | 25 | 0 | 0 |
| Dollar General #14060- Caulfield | County of Howell | 25 | 0 | 0 |