| Locality | Postal Code |
|---|---|
| Beidou, Guanxi (北斗里) | 306001, 306002 |
| Beishan, Guanxi (北山里) | 306001, 306002, 306004 |
| Datong, Guanxi (大同里) | 306004, 306004, 306008 |
| Dongan, Guanxi (東安里) | 306003, 306004, 306008, 306009 |
| Dongguang, Guanxi (東光里) | 306003, 306007, 306009 |
| Dongping, Guanxi (東平里) | 306005, 306008 |
| Dongshan, Guanxi (東山里) | 306003, 306009 |
| Dongxing, Guanxi (東興里) | 306000 |
| Jinshan, Guanxi (錦山里) | 306000 |
| Nanhe, Guanxi (南和里) | 306006 |
| Nanshan, Guanxi (南山里) | 306006, 306007 |
| Nanxin, Guanxi (南新里) | 306007 |
| Nanxiong, Guanxi (南雄里) | 306001, 306002 |
| Renan, Guanxi (仁安里) | 306001, 306004, 306008 |
| Shanglin, Guanxi (上林里) | 306006 |
| Shiguang, Guanxi (石光里) | 306005 |
| Xian, Guanxi (西安里) | 306001, 306002 |
| Xinfu, Guanxi (新富里) | 306007 |
| Xinli, Guanxi (新力里) | 306006 |
| Yushan, Guanxi (玉山里) | 306000 |
| Postal Codes in Hsinchu county | |
|---|---|
| Zhudong (竹東鎮) | Zhubei (竹北市) |
| Xinfeng (新豐鄉) | Xinbu (新埔鎮) |
| Wufeng (五峰鄉) | Qionglin (芎林鄉) |
| Jianshi (尖石鄉) | Hukou (湖口鄉) |
| Hengshan (橫山鄉) | Guanxi (關西鎮) |
| Emei (峨眉鄉) | Beibu (北埔鄉) |
| Baoshan (寶山鄉) | |