Postal Code Reform into the State Basic District System

1. Purpose of Reform
o The State Basic District Number given to each State Basic District is to be used as

the new postal code, according to Article 19(3) of the Road Name Address Act.

《 Applicable Law 》

[Article 19(3) of the Road Name Address Act] District numbers publicly notified pursuant to Article 18(3) shall constitute basic units of various districts publicized for the general public under other Acts, such as statistical districts, postal districts, and jurisdictions, unless particular reasons exist to the contrary.

o The State Basic District is used as the basic unit of various districts controlled by public authorities for the purposes including statistics, firefighting, public order, mail service and so on.  It is anticipated that such State services will be provided more efficiently by sharing the information related to the State Basic District.

2. How It is Reformed
o The 5-digit district number assigned based on the geographic features (roads, rivers, railroads, etc.) and assigned to each State Basic District will replace the existing 6-digit postal code created based on the administrative units (Eup, Myeon and Dong) and the districts assigned to each postman.
– The first 3 digits out of 5 represent Special (Metropolitan) City / Province and Si (city) / Gun / Jachigu (“Autonomous Gu”)
– The last 2 digits are composed of serial numbers given to the districts inside the corresponding Si, Gun and Autonomous Gu, from the northwest corner of the district to the southeast.


See Also