About postal code 31720
The postal code 31720 routes mail to 송악읍 in the 충청남도 region of South Korea. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
South Korea · Postal code
31720 - 송악읍
Postal code 31720 is 송악읍 in 충청남도, South Korea.
| Postal code | 31720 |
| Place | 송악읍 |
| Region | 충청남도 |
| District | 당진시 |
| Country | South Korea (KR) |
| Coordinates | 36.9697, 126.7749 (map) |