We found 21 public water systems in Washington county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Akron Town Of | Akron | 2,379 | 17 | 69 |
| Otis Town Of | County of Washington | 600 | 0 | 104 |
| Blake's Corner | County of Washington | 200 | 0 | 0 |
| Anton Cafe | County of Washington | 200 | 0 | 0 |
| Arickaree School | County of Washington | 157 | 0 | 81 |
| Lone Star School | County of Washington | 149 | 0 | 94 |
| Woodlin School | County of Washington | 137 | 0 | 160 |
| Anton Supers | County of Washington | 65 | 0 | 0 |
| Coyote Crossing Cafe | County of Washington | 28 | 0 | 0 |
| WOODROW GENERAL STORE | County of Washington | 26 | 0 | 0 |
| Red Spur Mercantile | County of Washington | 25 | 0 | 0 |
| Triple L Motel | County of Washington | 25 | 0 | 0 |
| Anton Steakhouse Caf | County of Washington | 0 | 0 | 0 |
| Prewitt Ra North | County of Washington | 0 | 0 | 0 |
| Prewitt Ra South | County of Washington | 0 | 0 | 0 |
| Red Spur Cafe | County of Washington | 0 | 0 | 0 |
| Western Steak House | County of Washington | 0 | 0 | 0 |
| Last Chance Cafe | County of Washington | 0 | 0 | 0 |
| Meadowlark Cafe And Motel | County of Washington | 0 | 0 | 0 |
| Last Chance Motel | County of Washington | 0 | 0 | 0 |
| Last Chance Dairy King | County of Washington | 0 | 0 | 0 |