31991
서산시 - South Korea
Postal code 31991 corresponds to 서산시, in 충청남도 (South Korea).
- Country
- South Korea (KR)
- Department
- 충청남도
- Municipality
- 서산시
- Coordinates
- 36.7763, 126.4569Degrees, minutes, seconds: 36°46'35"N 126°27'25"E
- Time zone
- Asia/Seoul (UTC+9)
- Dialing code
- +82
How to write the address
31991 서산시 충청남도 South Korea
Nearby codes