.
Washington ZIP Codes — Ohio (OH)
| City or Location | County or District | States or Territories | States or Territories Abbrieviation | ZIP Code or Postcode |
|---|---|---|---|---|
| Barlow | Washington | Ohio | OH | 45712 |
| Bartlett | Washington | Ohio | OH | 45713 |
| Belpre | Washington | Ohio | OH | 45714 |
| Beverly | Washington | Ohio | OH | 45715 |
| Coal Run | Washington | Ohio | OH | 45721 |
| Cutler | Washington | Ohio | OH | 45724 |
| Fleming | Washington | Ohio | OH | 45729 |
| Little Hocking | Washington | Ohio | OH | 45742 |
| Lowell | Washington | Ohio | OH | 45744 |
| Lower Salem | Washington | Ohio | OH | 45745 |
| Macksburg | Washington | Ohio | OH | 45746 |
| Marietta | Washington | Ohio | OH | 45750 |
| New Matamoras | Washington | Ohio | OH | 45767 |
| Newport | Washington | Ohio | OH | 45768 |
| Reno | Washington | Ohio | OH | 45773 |
| Vincent | Washington | Ohio | OH | 45784 |
| Waterford | Washington | Ohio | OH | 45786 |
| Watertown | Washington | Ohio | OH | 45787 |
| Whipple | Washington | Ohio | OH | 45788 |
| Wingett Run | Washington | Ohio | OH | 45789 |
.