- City
- Okaya-shi (JIS code: 20204)(Since: 04/01/1936)
- Prefectures
- Nagano (JIS code: 20204)(Since: 12/31/1871)
| Zip code | Address name total 46 (Romaji order) | Update | 
|---|---|---|
| 394-0000 | - | |
| 394-0002 | - | |
| 394-0053 | - | |
| 394-0001 | - | |
| 394-0055 | - | |
| 394-0051 | - | |
| 394-0091 | 08 2009 | |
| 394-0043 | - | |
| 394-0011 | - | |
| 394-0089 | - | |
| 394-0084 | - | |
| 394-0085 | - | |
| 394-0082 | - | |
| 394-0081 | - | |
| 394-0087 | - | |
| 394-0083 | - | |
| 394-0088 | - | |
| 394-0086 | - | |
| 394-0003 | - | |
| 394-0048 | - | |
| 394-0047 | - | |
| 394-0046 | - | |
| 394-0045 | - | |
| 394-0022 | - | |
| 394-0034 | - | |
| 394-0021 | - | |
| 394-0029 | - | |
| 394-0004 | - | |
| 394-0031 | - | |
| 394-0025 | - | |
| 394-0027 | - | |
| 394-0026 | - | |
| 394-0035 | - | |
| 394-0042 | - | |
| 394-0033 | - | |
| 394-0052 | - | |
| 394-0054 | - | |
| 394-0023 | - | |
| 394-0056 | - | |
| 394-0024 | - | |
| 394-0028 | - | |
| 394-0044 | - | |
| 394-0005 | - | |
| 394-0041 | - | |
| 394-0053 | - | |
| 394-0032 | - |