| Locality | Post Code |
|---|---|
| Baxian, Sanzhi (八賢里) | 252005 |
| Buping, Sanzhi (埔坪里) | 252004, 252005, 252006 |
| Butou, Sanzhi (埔頭里) | 252004, 252005, 252006, 252201, 252202, … |
| Dianzi, Sanzhi (店子里) | 252001 |
| Fude, Sanzhi (福德里) | 252001, 252005, 252604 |
| Guzhuang, Sanzhi (古庄里) | 252002, 252004, 252005 |
| Hengshan, Sanzhi (橫山里) | 252003 |
| Houcuo, Sanzhi (後厝里) | 252002, 252601, 252602, 252603 |
| Maozhang, Sanzhi (茂長里) | 252003 |
| Xiban, Sanzhi (錫板里) | 252001, 252002 |
| Xinghua, Sanzhi (興華里) | 252001 |
| Xinzhuang, Sanzhi (新庄里) | 252000 |
| Yuanshan, Sanzhi (圓山里) | 252003, 252005 |