| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Bencuo, Xikou (本厝村) | 623016 |
| Postal/ZIP Codes in Chailin, Xikou (柴林村) | 623015 |
| Postal/ZIP Codes in Diexi, Xikou (疊溪村) | 623016 |
| Postal/ZIP Codes in Linjiao, Xikou (林腳村) | 623000 |
| Postal/ZIP Codes in Liugou, Xikou (柳溝村) | 623016 |
| Postal/ZIP Codes in Meibei, Xikou (美北村) | 623000 |
| Postal/ZIP Codes in Meinan, Xikou (美南村) | 623015 |
| Postal/ZIP Codes in Miaolun, Xikou (妙崙村) | 623017 |
| Postal/ZIP Codes in Pingding, Xikou (坪頂村) | 623017 |
| Postal/ZIP Codes in Xibei, Xikou (溪北村) | 623014 |
| Postal/ZIP Codes in Xidong, Xikou (溪東村) | 623014, 623017 |
| Postal/ZIP Codes in Xixi, Xikou (溪西村) | 623000 |
| Postal/ZIP Codes in Youdong, Xikou (游東村) | 623017 |
| Postal/ZIP Codes in Youxi, Xikou (游西村) | 623014 |