| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Wakasugicho (日光市) | 321-1407 |
| Postal/ZIP Codes in Yamaguchi (日光市) | 321-2343 |
| Postal/ZIP Codes in Yamakubo (日光市) | 321-1426 |
| Postal/ZIP Codes in Yanokuchi (日光市) | 321-2356 |
| Postal/ZIP Codes in Yasukawacho (日光市) | 321-1432 |
| Postal/ZIP Codes in Yokokawa (日光市) | 321-2801 |
| Postal/ZIP Codes in Yumoto (日光市) | 321-1662 |
| Postal/ZIP Codes in Yunishikawa (日光市) | 321-2601 |