| Locality | Post Code |
|---|---|
| Albany, Fayette | 52142 |
| Alpha, Fayette | 52171 |
| Arlington, Fayette | 50606 |
| Auburn Douglas, Fayette | 52175 |
| Aurora, Fayette | 50607 |
| Brainard, Fayette | 52141 |
| Castalia, Fayette | 52133 |
| Clermont, Fayette | 52135 |
| Donnan, Fayette | 52142 |
| Douglas, Fayette | 52175 |
| Eldorado, Fayette | 52175 |
| Elgin, Fayette | 52141 |
| Fairbank, Fayette | 50629 |
| Fayette, Fayette | 52142 |
| Hawkeye, Fayette | 52147 |
| Lamont, Fayette | 50650 |
| Lima, Fayette | 52142 |
| Maryville, Fayette | 50606 |
| Maynard, Fayette | 50655 |
| Oelwein, Fayette | 50662 |
| Oran, Fayette | 50664 |
| Postville, Fayette | 52162 |
| Randalia, Fayette | 52164 |
| Saint Lucas, Fayette | 52166 |
| Stanley, Fayette | 50671 |
| Sumner, Fayette | 50674 |