List of All Postal Codes in Ookuwa | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 399-5500 | Ikanikeisaiganaibaai | Nagano Prefecture |
| 399-5501 | Tono | Nagano Prefecture |
| 399-5502 | Suhara | Nagano Prefecture |
| 399-5503 | Nagano | Nagano Prefecture |
| 399-5504 | Nojiri | Nagano Prefecture |