| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Chixi, Beihai (赤西村) | 536063 |
| Postal/ZIP Codes in Dongwei, Beihai (垌尾村) | 536063 |
| Postal/ZIP Codes in Gaocai, Beihai (高菜村) | 536063 |
| Postal/ZIP Codes in Gaonong, Beihai (高农村) | 536063 |
| Postal/ZIP Codes in Kaijiang, Beihai (开江村) | 536063 |