| Locality | Post Code |
|---|---|
| Ace, Polk | 77326 |
| Asia, Polk | 75939 |
| Barnes, Polk | 75960 |
| Barnum, Polk | 75939 |
| Camden, Polk | 75934 |
| Carmona, Polk | 75939 |
| Corrigan, Polk | 75939 |
| Dallardsville, Polk | 77332 |
| Goodrich, Polk | 77335 |
| Leggett, Polk | 77350 |
| Lily Island, Polk | 75934 |
| Livingston, Polk | 77351 |
| Moscow, Polk | 75960 |
| Onalaska, Polk | 77360 |
| Pleasant Hill, Polk | 75939 |
| Pluck, Polk | 75939 |
| Segno, Polk | 77351 |
| Seven Oaks, Polk | 77350 |
| Snow Hill, Polk | 75939 |
| Wakefield, Polk | 75939 |