Pyeongtaek Siheung Expressway, Singil-dong, Danwon-gu, Ansan-si postal codes (1)
The one building on Pyeongtaek Siheung Expressway in Singil-dong, Danwon-gu, Ansan-si uses postal code 15405. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Pyeongtaek Siheung Expressway 36 | 15405 | 신길IC 영업소 |