| Locality | Postal Code |
|---|---|
| Nishijo (妙高市) | 944-0023 |
| Nishikicho (妙高市) | 944-0051 |
| Nishinoya (妙高市) | 944-0064 |
| Nishinoyashinden (妙高市) | 944-0063 |
| Nishisuganumashinden (妙高市) | 944-0058 |
| Nishitayashinden (妙高市) | 949-2206 |
| Nozokido (妙高市) | 944-0204 |
| Ogai (妙高市) | 944-0215 |
| Oharashinden (妙高市) | 944-0332 |
| Oizumo (妙高市) | 944-0032 |
| Okashinden (妙高市) | 949-2212 |
| Okazakishinden (妙高市) | 944-0094 |
| Okemi (妙高市) | 949-2224 |
| Onigori (妙高市) | 944-0224 |
| Osakicho (妙高市) | 944-0006 |
| Osawashinden (妙高市) | 944-0333 |
| Oshika (妙高市) | 949-2221 |
| Oshimo (妙高市) | 944-0216 |
| Otani (妙高市) | 949-2225 |
| Others (妙高市) | 944-0000 |
| Otoyoshi (妙高市) | 944-0082 |
| Ryozenji (妙高市) | 944-0062 |
| Sakaecho (妙高市) | 944-0044 |
| Sakaguchishinden (妙高市) | 949-2234 |
| Sakaishinden (妙高市) | 944-0086 |
| Sakashitashinden (妙高市) | 949-2202 |