| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Others (結城市) | 307-0000 |
| Postal/ZIP Codes in Oyaze (結城市) | 307-0002 |
| Postal/ZIP Codes in Sagarimatsu (結城市) | 307-0008 |
| Postal/ZIP Codes in Sanno (結城市) | 307-0023 |
| Postal/ZIP Codes in Shimeba (結城市) | 307-0038 |
| Postal/ZIP Codes in Shimpukuji (結城市) | 307-0053 |
| Postal/ZIP Codes in Shinjukushinden (結城市) | 307-0034 |
| Postal/ZIP Codes in Shintsutsuminakadori (結城市) | 307-0016 |
| Postal/ZIP Codes in Shinyabata (結城市) | 307-0029 |
| Postal/ZIP Codes in Takei (結城市) | 307-0043 |
| Postal/ZIP Codes in Tama (結城市) | 307-0044 |
| Postal/ZIP Codes in Uenashi (結城市) | 307-0045 |
| Postal/ZIP Codes in Wakamiya (結城市) | 307-0017 |
| Postal/ZIP Codes in Yabata (結城市) | 307-0022 |
| Postal/ZIP Codes in Yamakawashinjuku (結城市) | 307-0033 |
| Postal/ZIP Codes in Yuki (結城市) | 307-0001 |
| Postal/ZIP Codes in Yukisaku (結城市) | 307-0046 |
| Postal/ZIP Codes in Zenemonshinden (結城市) | 307-0035 |