| Locality | Post Code |
|---|---|
| Albion, Whitman | 99102 |
| Belmont, Whitman | 99104 |
| Colfax, Whitman | 99111 |
| Colton, Whitman | 99113 |
| Diamond, Whitman | 99111 |
| Endicott, Whitman | 99125 |
| Farmington, Whitman | 99128 |
| Garfield, Whitman | 99130 |
| Hay, Whitman | 99136 |
| Hooper, Whitman | 99333 |
| Lacrosse, Whitman | 99143 |
| Lamont, Whitman | 99017 |
| Malden, Whitman | 99149 |
| Oakesdale, Whitman | 99158 |
| Palouse, Whitman | 99161 |
| Plaza, Whitman | 99170 |
| Pullman, Whitman | 99163 |
| Rosalia, Whitman | 99170 |
| Saint John, Whitman | 99171 |
| Sprague, Whitman | 99017 |
| Steptoe, Whitman | 99174 |
| Tekoa, Whitman | 99033 |
| Thornton, Whitman | 99176 |
| Uniontown, Whitman | 99179 |