| Locality | Post Code |
|---|---|
| Bethany, Harrison | 64424 |
| Blythedale, Harrison | 64426 |
| Brimson, Harrison | 64642 |
| Cainsville, Harrison | 64632 |
| Eagleville, Harrison | 64442 |
| Gilman City, Harrison | 64642 |
| Hatfield, Harrison | 64458 |
| Martinsville, Harrison | 64467 |
| Mount Moriah, Harrison | 64481 |
| New Hampton, Harrison | 64471 |
| Ridgeway, Harrison | 64481 |