Postal codes in South Korea

Postal codes in South Korea are composed of five digits. A new system of post codes was introduced on August 1, 2015. The first postal code in South Korea was established on July 1, 1970, and has been revised three times: in 1988, 2000, and 2015.

History

1970–1988

South Korea's first postal code was introduced on July 1, 1970. Individual codes were provided for each post office distribution area, using an nnn-nn numeric format (e.g., 120-01 represented Susaek-dong, Seodaemun-gu, Seoul). Unlike current postal coding provided by administrative districts, the 1970 system was implemented based upon a post office's railroad line; this often led to inconsistencies in post codes relative to their administrative areas.

Large post offices used a three-digit postal code, and small offices a five-digit code. For example, the Seoul Central Post Office's code was 100, and the Seoul Susaek-dong Post Office's was 120-01. Codes in the 700s were assigned to military posts, in the 800s to Hwanghae, the 900s to Pyongan, and the 000 range to Hamgyong.

1988–2000

Postal codes became six digits long on February 1, 1988. They were grouped by administrative areas as reflected by district reorganization and highway transportation networks. New groupings were also implemented: units in the 400s, not previously available, were allocated to Gyeonggi and Incheon, and 700s units, previously military, were changed to Gyeongbuk and Daegu. These codes utilized an nnn-nnn format; the first three digits represented, in order, the metropolitan administrative district (large city, metropolitan area, province, special autonomous area, etc.), the resident's neighborhood or ward, and a specific city, county, or district.

The last three digits matched the code to the recipient. They were assigned based on a postal carrier's delivery route. These sub-codes were divided into statutory dongs and administrative dongs, followed by myeons, and then by buildings and/or mailboxes.

2000–2015

On May 1, 2000, postal codes were assigned to each delivery agent's postal area to facilitate easier distribution. This system relied upon the codes assigned in 1988. New postal codes were subdivided to match each postman's delivery area, taking into account the introduction of automated mail sorting equipment.

Current System

The State Basic District System was introduced into South Korea on August 1, 2015. The five-digit State Basic District Number is given to each State Basic District, and it is used as a postal code of that district instead of the former six-digit code.

Assignment system

Current postal codes are structured around five digits. The first three digits represent a municipality, and the last two digits are given to the districts inside the corresponding municipality, from the northwest corner of the district to the southeast.

Table of the first three digits of the postal codes currently assigned

Location Digits 0 1 2 3 4 5 6 7 8 9
Seoul 01 Gangbuk-gu Dobong-gu Nowon-gu
02 Jungnang-gu Dongdaemun-gu Seongbuk-gu
03 Jongno-gu Eunpyeong-gu Seodaemun-gu Mapo-gu
04 Mapo-gu Yongsan-gu Jung-gu Seongdong-gu Gwangjin-gu
05 Gwangjin-gu Gangdong-gu Songpa-gu
06 Gangnam-gu Seocho-gu Dongjak-gu
07 Dongjak-gu Yeongdeungpo-gu Gangseo-gu Yangcheon-gu
08 Yangcheon-gu Guro-gu Geumcheon-gu Gwanak-gu
09
Gyeonggi-do 10 Gimpo-si Goyang-si Paju-si
11 Yeoncheon-gun Pocheon-si Dongducheon-si Yangju-si Uijeongbu-si Guri-si
12 Namyangju-si Gapyeong-gun Yangpyeong-gun Yeoju-si Gwangju-si Hanam-si
13 Hanam-si Seongnam-si Gwacheon-si Anyang-si
14 Anayang-si Gwangmyeong-si Bucheon-si Siheung-si
15 Siheung-si Ansan-si Gunpo-si
16 Uiwang-si Suwon-si Yongin-si
17 Yongin-si Icheon-si Anseong-si Pyeongtaek-si
18 Pyeongtaek-si Osan-si Hwaseong-si
19
20
Incheon 21 Gyeyang-gu Bupyeong-gu Namdong-gu Yeonsu-gu
22 Yeonsu-gu Michuhol-gu Jung-gu Dong-gu Seo-gu
23 Ganghwa-gun Ongjin-gun
Gangwon-do 24 Cheorwon-gun Hwacheon-gun Chuncheon-si Yanggu-gun Inje-gun Goseong-gun Sokcho-si
25 Yangyang-gun Hongcheon-gun Hoengseong-gun Pyeongchang-gun Gangneung-si Donghae-si Samcheok-si
26 Taebaek-si Jeongseon-gun Yeongwol-gun Wonju-si
Chungcheongbuk-do 27 Danyang-gun Jecheon-si Chungju-si Eumseong-gun Jincheon-gun Jeungpyeong-gun
28 Goesan-gun Cheongju-si Boeun-gun
29 Okcheon-gun Yeongdong-gun
Sejong-si 30 Sejong-si
Chungcheongnam-do 31 Cheonan-si Asan-si Dangjin-si Seosan-si
32 Seosan-si Taean-gun Hongseong-gun Yesan-gun Gongju-si Geumsan-gun Gyeryong-si Nonsan-si
33 Nonsan-si Buyeo-gun Cheongyang-gun Boryeong-si Seocheon-gun
Daejeon 34 Yuseong-gu Daedeok-gu Dong-gu Jung-gu
35 Jung-gu Seo-gu
Gyeongsangbuk-do 36 Yeongju-si Bonghwa-gun Uljin-gun Yeongdeok-gun Yeongyang-gun Andong-si Yecheon-gun Mungyeong-si
37 Mungyeong-si Sangju-si Uiseong-gun Cheongsong-gun Pohang-si
38 Gyeongju-si Cheongdo-gun Gyeongsan-si Yeongcheon-si
39 Gumi-si Gimcheon-si Chilgok-gun
40 Seongju-gun Goryeong-gun Ulleung-gun
Daegu 41 Dong-gu Buk-gu Seo-gu Jung-gu
42 Suseong-gu Nam-gu Dalseo-gu Dalseong-gun
43 Dalseong-gun Gunwi-gun
Ulsan 44 Dong-gu Buk-gu Jung-gu Nam-gu Ulju-gun
45 Ulju-gun
Busan 46 Gijang-gun Geumjeong-gu Buk-gu Gangseo-gu Sasang-gu
47 Sasang-gu Busanjin-gu Yeonje-gu Dongnae-gu
48 Haeundae-gu Suyeong-gu Nam-gu Dong-gu Jung-gu
49 Yeongdo-gu Seo-gu Saha-gu
Gyeongsangnam-do 50 Hamyang-gun Geochang-gun Hapcheon-gun Changnyeong-gun Miryang-si Yangsan-si Gimhae-si
51 Gimhae-si Changwon-si
52 Haman-gun Uiryeong-gun Sancheong-gun Hadong-gun Namhae-gun Sacheon-si Jinju-si Goseong-gun
53 Tongyeong-si Geoje-si
Jeollabuk-do 54 Gunsan-si Gimje-si Iksan-si Jeonju-si
55 Jeonju-si Wanju-gun Jinan-gun Muju-gun Jangsu-gun Namwon-si Imsil-gun
56 Sunchang-gun Jeongeup-si Buan-gun Gochang-gun
Jeollanam-do 57 Yeonggwang-gun Hampyeong-gun Jangseong-gun Damyang-gun Gokseong-gun Gurye-gun Gwangyang-si Suncheon-si
58 Suncheon-si Hwasun-gun Naju-si Yeongam-gun Muan-gun Mokpo-si Sinan-gun Jindo-gun
59 Haenam-gun Wando-gun Gangjin-gun Jangheung-gun Boseong-gun Goheung-gun Yeosu-si
60
Gwangju 61 Buk-gu Dong-gu Nam-gu Seo-gu
62 Seo-gu Gwangsan-gu
Jeju-do 63 Jeju-si Seogwipo-si
  1. ^ Sejong-si is a one-level municipality, although it is considered as a high-level. There is no low-level municipality in it.
  2. ^ a b Gunwi-gun was a part of Gyeongsangbuk-do, but it has been incorporated into Daegu since July 1, 2023.
  3. ^ a b Jeju-do is a one-level municipality, although it is considered as a high-level. There is no low-level municipality in it: Jeju-si and Seogwipo-si are not municipalities.

This page was last updated at 2024-03-17 05:29 UTC. Update now. View original page.

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