List of All Postal Codes in Omachi | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 398-0000 | Ikanikeisaiganaibaai | Nagano Prefecture |
| 398-0001 | Taira | Nagano Prefecture |
| 398-0002 | Omachi | Nagano Prefecture |
| 398-0004 | Tokiwa | Nagano Prefecture |
| 399-7301 | Yasaka | Nagano Prefecture |
| 399-7302 | Yasakashobu | Nagano Prefecture |
| 399-9101 | Miasa | Nagano Prefecture |
| 849-2100 | Ikanikeisaiganaibaai | Saga Prefecture |
| 849-2101 | Omachi | Saga Prefecture |
| 849-2102 | Fukumo | Saga Prefecture |