| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Niida Sakaecho (秋田市) | 010-1433 |
| Postal/ZIP Codes in Niida Shinden (秋田市) | 010-1427 |
| Postal/ZIP Codes in Ohiradai (秋田市) | 010-1428 |
| Postal/ZIP Codes in Omachi (秋田市) | 010-0921 |
| Postal/ZIP Codes in Onoba (秋田市) | 010-1424 |
| Postal/ZIP Codes in Onoba Shimmachi (秋田市) | 010-1425 |
| Postal/ZIP Codes in Oroshimachi (秋田市) | 010-0061 |
| Postal/ZIP Codes in Osumi (秋田市) | 010-1436 |
| Postal/ZIP Codes in Others (秋田市) | 010-0000 |
| Postal/ZIP Codes in Sakura (秋田市) | 010-0042 |
| Postal/ZIP Codes in Sakuradai (秋田市) | 010-0059 |
| Postal/ZIP Codes in Sakuragaoka (秋田市) | 010-0043 |
| Postal/ZIP Codes in Sannai (秋田市) | 010-0823 |
| Postal/ZIP Codes in Sanno (秋田市) | 010-0951 |
| Postal/ZIP Codes in Sanno Nakajimamachi (秋田市) | 010-0955 |
| Postal/ZIP Codes in Sanno Nakazonomachi (秋田市) | 010-0953 |
| Postal/ZIP Codes in Sanno Numatamachi (秋田市) | 010-0954 |
| Postal/ZIP Codes in Sanno Rinkaimachi (秋田市) | 010-0956 |