List of All Postal Codes in Koumi | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 384-1100 | Ikanikeisaiganaibaai | Nagano Prefecture |
| 384-1101 | Higashimanagashi | Nagano Prefecture |
| 384-1102 | Komi | Nagano Prefecture |
| 384-1103 | Toyosato | Nagano Prefecture |
| 384-1104 | Inako | Nagano Prefecture |
| 384-1105 | Chiyosato | Nagano Prefecture |