| Locality | Post Code |
|---|---|
| Butte Des Morts, Winnebago | 54927 |
| Eureka, Winnebago | 54963 |
| Larsen, Winnebago | 54947 |
| Menasha, Winnebago | 54952 |
| Neenah, Winnebago | 54956 |
| Omro, Winnebago | 54963 |
| Oshkosh, Winnebago | 54901, 54902, 54903, 54904, 54906 |
| Pickett, Winnebago | 54964 |
| Waukau, Winnebago | 54980 |
| Winchester, Winnebago | 54947 |
| Winnebago, Winnebago | 54985 |
| Winneconne, Winnebago | 54986 |