| Locality | Post Code |
|---|---|
| Minamiyama (三沢市) | 033-0151 |
| Minatomachi (三沢市) | 033-0141 |
| Minohara (三沢市) | 033-0033 |
| Misawa (三沢市) | 033-0022 |
| Mukawame (三沢市) | 033-0111 |
| Nei (三沢市) | 033-0167 |
| Okamisawa (三沢市) | 033-0021 |
| Omachi (三沢市) | 033-0041 |
| Orikasa (三沢市) | 033-0104 |
| Others (三沢市) | 033-0000 |
| Otsu (三沢市) | 033-0134 |
| Sabishiro (三沢市) | 033-0113 |
| Saiwaicho (三沢市) | 033-0011 |
| Sakaecho (三沢市) | 033-0042 |
| Sakuracho (三沢市) | 033-0031 |
| Satsukigaoka (三沢市) | 033-0155 |
| Shikanaka (三沢市) | 033-0133 |
| Shimmori (三沢市) | 033-0105 |
| Shimokubo (三沢市) | 033-0023 |
| Shincho (三沢市) | 033-0062 |
| Shiogama (三沢市) | 033-0103 |
| Sunamori (三沢市) | 033-0102 |
| Takanosawa (三沢市) | 033-0165 |
| Tomisaki (三沢市) | 033-0163 |
| Yachigashira (三沢市) | 033-0164 |
| Yakushicho (三沢市) | 033-0045 |