| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Uchikawayunomata, Akita (内川湯ノ又) | 018-1852 |
| Postal/ZIP Codes in Unoki, Akita (鵜ノ木) | 018-1722 |
| Postal/ZIP Codes in Uraomachi, Akita (浦大町) | 018-1741 |
| Postal/ZIP Codes in Urayokomachi, Akita (浦横町) | 018-1742 |
| Postal/ZIP Codes in Uwamachi, Akita (上町) | 018-1705 |