| Locality | Post Code |
|---|---|
| Kobarashinden (妙高市) | 944-0331 |
| Kodancho (妙高市) | 944-0020 |
| Kokuka (妙高市) | 944-0004 |
| Komaruyamashinden (妙高市) | 944-0072 |
| Konari (妙高市) | 944-0226 |
| Konigori (妙高市) | 944-0221 |
| Kotsubone (妙高市) | 944-0213 |
| Kubomatsubara (妙高市) | 944-0061 |
| Kubotashinden (妙高市) | 949-2207 |
| Kurihara (妙高市) | 944-0007 |
| Kyozukacho (妙高市) | 944-0034 |
| Makibuchi (妙高市) | 944-0202 |
| Mitsumata (妙高市) | 944-0074 |
| Miyauchi (妙高市) | 944-0097 |
| Moguro (妙高市) | 949-2232 |
| Nagamori (妙高市) | 944-0073 |
| Nagasawa (妙高市) | 944-0345 |
| Nagasawara (妙高市) | 944-0342 |
| Nakabarashinden (妙高市) | 949-2204 |
| Nakagawa (妙高市) | 944-0005 |
| Nakajiku (妙高市) | 944-0027 |
| Nakajimashinden (妙高市) | 949-2214 |
| Nakamachi (妙高市) | 944-0045 |
| Nakayokoyama (妙高市) | 944-0217 |
| Nashinoki (妙高市) | 944-0077 |
| Nireshima (妙高市) | 944-0334 |