| Locality | Post Code |
|---|---|
| Sogye-Dong, Uichanggu (소계동) | 51183, 51184, 51185, 51186, 51187, … |
| Toechon-Dong, Uichanggu (퇴촌동) | 51138, 51139, 51140, 51148, 51154 |
| Yong-Dong, Uichanggu (용동) | 51139, 51140, 51154 |
| Yongho-Dong, Uichanggu (용호동) | 51428, 51429, 51430, 51431, 51432, … |
| Yongji-Dong, Uichanggu (용지동) | 51434 |