| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Terao (妙高市) | 949-2201 |
| Postal/ZIP Codes in Tokaichi (妙高市) | 944-0095 |
| Postal/ZIP Codes in Toyocho (妙高市) | 944-0009 |
| Postal/ZIP Codes in Tsuboyama (妙高市) | 944-0222 |
| Postal/ZIP Codes in Tsukioka (妙高市) | 944-0003 |
| Postal/ZIP Codes in Waya (妙高市) | 944-0211 |
| Postal/ZIP Codes in Yachibayashishinden (妙高市) | 944-0085 |
| Postal/ZIP Codes in Yanaidacho (妙高市) | 944-0008 |
| Postal/ZIP Codes in Yonejimashinden (妙高市) | 949-2231 |
| Postal/ZIP Codes in Yoshiki (妙高市) | 944-0022 |
| Postal/ZIP Codes in Yoshikishinden (妙高市) | 944-0024 |
| Postal/ZIP Codes in Yukimori (妙高市) | 944-0098 |
| Postal/ZIP Codes in Zozo (妙高市) | 949-2103 |