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