Dwitdureong-gil, Seongam-dong, Danwon-gu, Ansan-si postal codes (4)
All 4 buildings on Dwitdureong-gil in Seongam-dong, Danwon-gu, Ansan-si use postal code 15651. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Dwitdureong-gil 13 | 15651 | |
| Dwitdureong-gil 14 | 15651 | |
| Dwitdureong-gil 27 | 15651 | |
| Dwitdureong-gil 54 | 15651 |