| Locality | Post Code |
|---|---|
| Arena, Iowa | 53503 |
| Avoca, Iowa | 53506 |
| Barneveld, Iowa | 53507 |
| Cobb, Iowa | 53526 |
| Dodgeville, Iowa | 53533 |
| Edmund, Iowa | 53535 |
| Highland, Iowa | 53543 |
| Hollandale, Iowa | 53544 |
| Linden, Iowa | 53553 |
| Mineral Point, Iowa | 53565 |
| Rewey, Iowa | 53580 |
| Ridgeway, Iowa | 53582 |