| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Uchiyama (匝瑳市) | 289-2171 |
| Postal/ZIP Codes in Wakashiocho (匝瑳市) | 289-2145 |
| Postal/ZIP Codes in Yamakuwa (匝瑳市) | 289-2105 |
| Postal/ZIP Codes in Yappe (匝瑳市) | 289-2155 |
| Postal/ZIP Codes in Yokaichiba Ha (匝瑳市) | 289-2141 |
| Postal/ZIP Codes in Yokaichiba Ho (匝瑳市) | 289-2146 |
| Postal/ZIP Codes in Yokaichiba I (匝瑳市) | 289-2144 |
| Postal/ZIP Codes in Yokaichiba Ni (匝瑳市) | 289-2142 |
| Postal/ZIP Codes in Yokaichiba Ro (匝瑳市) | 289-2143 |
| Postal/ZIP Codes in Yokosuka (匝瑳市) | 289-2134 |
| Postal/ZIP Codes in Yonemochi (匝瑳市) | 289-2107 |
| Postal/ZIP Codes in Yoshida (匝瑳市) | 289-2169 |
| Postal/ZIP Codes in Yoshizaki (匝瑳市) | 289-2122 |