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Postal codes in South Korea are composed of five digits. A new system of post codes was introduced on August 1, 2015. [1] The first postal code in South Korea was established on July 1, 1970, and has been revised three times: in 1988, 2000, and 2015. [2] [3]
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.
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.
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.
The State Basic District System was introduced in 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. [4]
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.
Refers to the number of zones published to the general public, such as statistics, firefighting, and mail.
"Article 19, Paragraph 3 of the Road Name Address Act", is used as the basic unit of statistical area, postal area.
In the case of Seoul, the numbers are from 01 to 09. For example, 01000, the first two digits are 01.
Prefix Ranges
| Prefix Range | Province or Region | Hangul |
| 01-09 | Seoul | 서울 |
| 10-20 | Gyeonggi-do | 경기 |
| 21-23 | Incheon | 인천 |
| 24-26 | Gangwon-do | 강원 |
| 27-29 | Chungcheongbuk-do | 충북 |
| 30 | Sejong-si | 세종 |
| 31-33 | Chungcheongnam-do | 충남 |
| 34-35 | Daejeon | 대전 |
| 36-40 | Gyeongsangbuk-do | 경북 |
| 41-43 | Daegu | 대구 |
| 44-45 | Ulsan | 울산 |
| 46-49 | Busan | 부산 |
| 50-53 | Gyeongsangnam-do | 경남 |
| 54-56 | Jeonbuk-do | 전북 |
| 57-60 | Jeollanam-do | 전남 |
| 61-62 | Gwangju | 광주 |
| 63 | Jeju | 제주 |
It is used for mail, national statistics, fire fighting, schools, police, and elections.
In the national basic area, 34,349 basic areas were established nationwide based on topographical features such as roads, rivers, and railroads, and five-digit area numbers were given to the established basic areas.
National basic district numbers have been assigned from Seoul (01XXX) to Jeju (63XXX) except for preliminary numbers in preparation for future unification(Union Korea) and urban development.
A postal code is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.
A ZIP Code is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly when senders use the code in the postal address. The Philippine Postal Corporation also uses this terminology for the postal code system in the Philippines.
Pohang, formerly spelled Po-Hang, is the largest city in North Gyeongsang Province, South Korea, with a population of 499,363 as of 2022, bordering the East Sea to the east, Yeongcheon to the west, Gyeongju to the south, and Cheongsong and Yeongdeok to the north.
Buan County is a county in Jeonbuk State, South Korea. It is bounded by the city of Jeongeup on the east, the county of Gochang on the south, the city of Gimje on the north, and Yellow Sea on the west. Buan is divided into 1 eup, 12 myeon, and 510 ri. Buan had a 2001 estimated population of 74,716 people and a 2018 population of 54,441 people with an area of 493.35 km2. Famous people from Buan include Joseon Dynasty kisaeng and poet, Yi Mae-chang. Like many rural areas in southern Korea, it has seen shrinking population with many younger people moving north to larger cities such as Seoul. This county should not be confused with Muan, the new capital of South Jeolla Province.
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Postal Code Search, Korea Post Official (ePost)
