List of All Postal Codes in Chikuhoku | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 399-7500 | Ikanikeisaiganaibaai | Nagano Prefecture |
| 399-7501 | Nishijo | Nagano Prefecture |
| 399-7502 | Higashijo | Nagano Prefecture |
| 399-7503 | Osawashinden | Nagano Prefecture |
| 399-7504 | Midarehashi | Nagano Prefecture |
| 399-7601 | Sakakita | Nagano Prefecture |
| 399-7711 | Sakai | Nagano Prefecture |