South Korea

31990 post code

Post code details

1 place

Code

Place

서산시

Region

충청남도

County

서산시

Coordinates

36.7746, 126.453

Accuracy

6 / 6

Country

South Korea

Location

OpenStreetMap ↗

36.7746, 126.453© OpenStreetMap

Places under this code

Place	Region	County	Coordinates
서산시	충청남도	서산시	36.7746, 126.453

Nearby codes

All →

31970 31971 31972 31973 31974 31975 31976 31977 31978 31979 31980 31981

Same code in other countries

Country	Place	Region
MX Mexico	Matachi	Chihuahua
PL Poland	Kraków	Lesser Poland

FAQ

Which city is 31990 in?

서산시, 충청남도, South Korea.

What are the coordinates of 31990?

36.7746, 126.453

Is 31990 used in other countries?

Yes, 2 other countries.

The data is unofficial and has known truncation; verify with the recipient and carrier for critical shipments. See data source & license → · Updated 2026-11-09. Attribution in