Searching for Latest South Korean Postal Codes (Zip Codes) in 2023

In South Korea, The postal code consists of a 5-digit number, and it is used to identify specific regions, districts, and buildings for the purpose of efficient mail delivery. first two digit represent the Special (Metropolitan) City/Province. The third digit indicates a specific district within the administrative unit. The fourth and fifth digits denote a specific post office or a specific building or group of buildings within the district. Postal service provider in South Korea is called “Korea Post,” operated by the Ministry of Science and ICT.

South Korea's Flag

Capital

Seoul

Nationality

Korean

Timezone

UTC+9 (Korea Standard Time

Postal Codes

01000, 10000, 20000 ...

Calling code

+82

ISO 3166 code

KR

Official language

Korean

Area

100,363 km2

Population

51,966,948

GDP

$1.804 trillion

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 of South Korea Postal Codes

From 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

From 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.

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 postman’s delivery route. These sub-codes were divided into statutory dongs and administrative dongs, followed by myeons, and then by buildings and/or mailboxes.

From 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 six-digit postal code was abolished on August 1, 2015, to be replaced with the current five-digit system that uses a simpler nnnnn format.

Latest South Korean Postal Codes / Zipcodes

How to Find Your Zip Code in Korea

Getting your head around the Korean address system might be a pain in the neck. If you have been living in Korea for a few years, you might have noticed the change of the address system, which is now based on specific street names and building numbers in your neighborhood. Zip code is an important part of the Korean address system, and that’s why Expat Guide Korea prepared a guide on how to find your zip code in Korea.

Korean Zip Code

Zip codes or postal codes are specific identification numbers given to the specific neighborhood in which your place is located. Starting from 2015, 5-digit numbers are used as zip codes in Korea, replacing the old 6-digit zip codes.

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.

List of All Postal Codes in Seoul
County Postal Codes
Gangbuk-gu 01000 – 01237
Dobong-gu 01300 – 01489
Nowon-gu 01600 – 01914
Jungnang-gu 02000 – 02263
Dongdaemun-gu 02400 – 02646
Seongbuk-gu 02700 – 02880
Jongno-gu 03000 – 03198
Eunpyeong-gu 03300 – 03506
Seodaemun-gu 03600 – 03789
Mapo-gu 03900 – 04214
Yongsan-gu 04300 – 04428
Jung-gu 04500 – 04637
Seongdong-gu 04700 – 04809
Gwangjin-gu 04900 – 05413
Songpa-gu 05500 – 05857
Gangnam-gu 06000 – 06378
Seocho-gu 06500 – 06806
Dongjak-gu 06900 – 07074
Yeongdeungpo-gu 07200 – 07448
Gangseo-gu 07500 – 07813
Yangcheon-gu 07900 – 08111
Guro-gu 08200 – 08395
Geumcheon-gu 08500 – 08657
Gwanak-gu 08700 – 08866
List of All Postal Codes in Busan
   
Gijang-gun 46000 – 46082
Geumjeong-gu 46200 – 46335
Buk-gu 46500 – 46653
Gangseo-gu 46700 – 46771
Sasang-gu 46900 – 47055
Busanjin-gu 47100 – 47397
Yeonje-gu 47500 – 47616
Dongnae-gu 47700 – 47906
Haeundae-gu 48000 – 48120
Suyeong-gu 48200 – 48318
Nam-gu 48400 – 48595
Dong-gu 48700 – 48822
Jung-gu 48900 – 48984
Yeongdo-gu 49000 – 49128
Seo-gu 49200 – 49277
Saha-gu 49300 – 49528
List of All Postal Codes in Chungcheongnam-do
Cheonan-si 31000 – 31261
Asan-si 31400 – 31584
Dangjin-si 31700 – 31817
Seosan-si 31900 – 32030
Taean-gun 32100 – 32172
Hongseong-gun 32200 – 32299
Yesan-gun 32400 – 32457
Gongju-si 32500 – 32626
Geumsan-gun 32700 – 32762
Gyeryong-si 32800 – 32842
Nonsan-si 32900 – 33028
Buyeo-gun 33100 – 33232
Cheongyang-gun 33300 – 33368
Boryeong-si 33400 – 33522
Seocheon-gun 33600 – 33677
List of All Postal Codes in Daegu
Dong-gu 41000 – 41269
Buk-gu 41400 – 41599
Seo-gu 41700 – 41872
Jung-gu 41900 – 41978
Suseong-gu 42000 – 42288
Nam-gu 42400 – 42515
Dalseo-gu 42600 – 42842
Dalseong-gun 42900 – 43024
List of All Postal Codes in Daejeon
Yuseong-gu 34000 – 34232
Daedeok-gu 34300 – 34445
Dong-gu 34500 – 34712
Jung-gu 34800 – 35086
Seo-gu 35200 – 35428
List of All Postal Codes in Gangwon-do
   
Cheorwon-gun 24000 – 24067
Hwacheon-gun 24100 – 24161
Chuncheon-si 24200 – 24471
Yanggu-gun 24500 – 24564
Inje-gun 24600 – 24668
Goseong-gun 24700 – 24770
Sokcho-si 24800 – 24904
Yangyang-gun 25000 – 25061
Hongcheon-gun 25100 – 25273
Pyeongchang-gun 25300 – 25384
Gangneung-si 25400 – 25646
Donghae-si 25700 – 25822
Samcheok-si 25900 – 25961
Taebaek-si 26000 – 26053
Jeongseon-gun 26100 – 26157
Yeongwol-gun 26200 – 26248
Wonju-si 26300 – 26509
List of All Postal Codes in Gwangju
Buk-gu 61000 – 61273
Dong-gu 61400 – 61514
Nam-gu 61600 – 61768
Seo-gu 61900 – 62078
Gwangsan-gu 62200 – 62466
List of All Postal Codes in Gyeonggi-do
Gimpo-si 10000 – 10136
Goyang-si 10200 – 10599
Paju-si 10800 – 10955
Yeoncheon-gun 11000 – 11050
Pocheon-si 11100 – 11192
Dongducheon-si 11300 – 11366
Yangju-si 11400 – 11525
Uijeongbu-si 11600 – 11816
Guri-si 11900 – 11962
Namyangju-si 12000 – 12285
Gapyeong-gun 12400 – 12473
Yangpyeong-gun 12500 – 12585
Yeoju-si 12600 – 12668
Gwangju-si 12700 – 12819
Hanam-si 12900 – 13029
Seongnam-si 13100 – 13647
Gwacheon-si 13800 – 13841
Anyang-si 13900 – 14128
Gwangmyeong-si 14200 – 14354
Bucheon-si 14400 – 14790
Siheung-si 14900 – 15119
Ansan-si 15200 – 15658
Gunpo-si 15800 – 15892
Uiwang-si 16000 – 16109
Suwon-si 16200 – 16713
Yongin-si 16800 – 17183
Icheon-si 17300 – 17424
Anseong-si 17500 – 17609
Pyeongtaek-si 17700 – 18001
Osan-si 18100 – 18151
Hwaseong-si 18200 – 18635
List of All Postal Codes in Gyeongsangbuk-do
Yeongju-si 36000 – 36175
Bonghwa-gun 36200 – 36273
Uljin-gun 36300 – 36371
Yeongdeok-gun 36400 – 36564
Andong-si 36600 – 36760
Yecheon-gun 36800 – 36867
Mungyeong-si 36900 – 37003
Sangju-si 37100 – 37276
Uiseong-gun 37300 – 37375
Cheongsong-gun 37400 – 37465
Pohang-si 37500 – 37948
Gyeongju-si 38000 – 38221
Cheongdo-gun 38300 – 38268
Gyeongsan-si 38400 – 38698
Yeongcheon-si 38800 – 38913
Gunwi-gun 39000 – 39066
Gumi-si 39100 – 39459
Gimcheon-si 39500 – 39698
Chilgok-gun 39800 – 39915
Seongju-gun 40000 – 40066
Goryeong-gun 40100 – 40166
Ulleung-gun 40200 – 40240
List of All Postal Codes in Gyeongsangnam-do
Hamyang-gun 50000 – 50057
Geochang-gun 50100 – 50153
Hapcheon-gun 50200 – 50253
Changnyeong-gun 50300 – 50367
Miryang-si 50400 – 50467
Yangsan-si 50500 – 50658
Gimhae-si 50800 – 51025
Changwon-si 51100 – 51797
Haman-gun 52000 – 52073
Uiryeong-gun 52100 – 52160
Sancheong-gun 52200 – 52264
Hadong-gun 52300 – 52355
Namhae-gun 52400 – 52455
Sacheon-si 52500 – 52571
Jinju-si 52600 – 52859
Goseong-gun 52900 – 52963
Tongyeong-si 53000 – 53104
Geoje-si 53200 – 53337
List of All Postal Codes in Incheon
Gyeyang-gu 21000 – 21129
Bupyeong-gu 21300 – 21460
Namdong-gu 21500 – 21700
Yeonsu-gu 21900 – 22031
Michuhol-gu 22100 – 22243
Jung-gu 22300 – 22410
Dong-gu 22500 – 22575
Seo-gu 22600 – 22858
Ganghwa-gun 23000 – 23062
Ongjin-gun 23100 – 23136
List of All Postal Codes in Jeju-do
Jeju-si 63000 – 63365
Seogwipo-si 63500 – 63644
List of All Postal Codes in Jeollabuk-do
Gunsan-si 54000 – 54179
Gimje-si 54300 – 54426
Iksan-si 54500 – 54679
Jeonju-si 54800 – 55151
Wanju-gun 55300 – 55368
Jinan-gun 55400 – 55460
Muju-gun 55500 – 55563
Jangsu-gun 55600 – 55662
Namwon-si 55700 – 55805
Imsil-gun 55900 – 55957
Sunchang-gun 56000 – 56059
Jeongeup-si 56100 – 56216
Buan-gun 56300 – 56349
Gochang-gun 56400 – 56469
List of All Postal Codes in Eollanam-do
Yeonggwang-gun 57000 – 57010
List of All Postal Codes in Sejong
Sejong-si 30000 – 30154
List of All Postal Codes in Ulsan
Dong-gu 44000 – 44115
Buk-gu 44200 – 44264
Jung-gu 44400 – 44553
Nam-gu 44600 – 44787
Ulju-gun 44900 – 45015

South Korean Address System

Did you know that South Korea’s address system is different from what most of countries in the world use? If you have seen a written address in South Korea, you’ll be confused at first because of the different format. So, before we learn about Korean Addresses, let us first discover the South Korean address system.
Just a quick fact, in the East Asian System, the administrative divisions characterize a typical building located in South Korea. If the address is written in South Korean, the largest division comes first, followed by the lesser divisions, the building, and lastly, the recipient. If the recipient lives in a multi-story building, include the floor and apartment or suite number.
It’s vital to note that in South Korea, the overall arrangement of addresses is the opposite of how addresses are usually written in Western Countries. If you are used to an address written from the smallest unit down to the province, then you have to know that Korean addresses work differently. The order is reversed instead of commencing with the home number and ending with the postal code. Take a look at the examples below.
Old Korean Address System: land-focused; city, district, neighborhood, land lot number
Example: 서울시 마포구 상수동 24-5번지 seoulsi mapogu sangsudong 24-5beonji – Seoul 24-5, Mapo-gu, Sangsu-dong
New Korean address system: building-focused; city, district, street name, and number
Example: 서울시 마포구 와우산로5안길 54-18 seoulsi mapogu wausanro5angil 54-18 – 54-18, Wausan-ro 5-an-gil, Mapo-gu, Seoul
The change of Korean address from lot-based to street-based happened on the year 2014. In the new system, all streets will have names that end in 대로 (daero, big road,) 길 (gil, road) or 로 (ro, road.) Due to the change from the previous system, buildings were given new building numbers. This gained different reactions from the locals. But, this change made it easy for foreigners to travel around South Korea.

Sending A Post Card In South Korea

You might be thinking, who still rights a postcard in this digital age? Well, it turns out that postcards are still part of Korean culture, especially during holiday seasons. It is used to send greetings to your loved ones. Companies also use postcards to send to their investors, customers, and others. So, do you know what to put in each postcard’s address line? It’s pretty simple:
1. Start with the recipient’s name. (last name – first name – honorifics)
2. Write the province first.
3. Proceed with street name and street number.
4. Include the house number.
5. Add the postal code.

Korea Post Mail