| Locality | Postal Code |
|---|---|
| Aioicho (米沢市) | 992-0032 |
| Akakuzure (米沢市) | 992-1206, 992-1406 |
| Akashibamachi (米沢市) | 992-0075 |
| Arukadeia (米沢市) | 992-0119 |
| Asagawa (米沢市) | 992-0112 |
| Azumacho (米沢市) | 992-0034 |
| Azusagawa (米沢市) | 992-0115 |
| Banseicho Domori (米沢市) | 992-1126 |
| Banseicho Kanaya (米沢市) | 992-1124 |
| Banseicho Kariyasu (米沢市) | 992-1121 |
| Banseicho Katako (米沢市) | 992-1125 |
| Banseicho Kuwayama (米沢市) | 992-1123 |
| Banseicho Tatsuzawa (米沢市) | 992-1201 |
| Banseicho Ushimori (米沢市) | 992-1127 |
| Banseicho Zusayama (米沢市) | 992-1122 |
| Bukiyashikimachi (米沢市) | 992-0073 |
| Chuo (米沢市) | 992-0045 |
| Ekimae (米沢市) | 992-0027 |
| Fukuda (米沢市) | 992-0036 |
| Fukudamachi (米沢市) | 992-0033 |
| Furushidamachi (米沢市) | 992-0065 |
| Gobyo (米沢市) | 992-0055 |
| Hachimampara (米沢市) | 992-1128 |
| Hanazawa (米沢市) | 992-0021 |
| Hanazawacho (米沢市) | 992-0022 |
| Higashi (米沢市) | 992-0026 |