South Korea Address Format

Korean addresses are written from the largest unit to the smallest: 5-digit postal code on its own line, then province/special city, then city or district (si/gun/gu), then road name with building number (e.g. Sejong-daero 110), then the recipient. Since 2014 road-name addresses have officially replaced the old lot-number (dong/ri) system.

Standard format

03141 Seoul, Jongno-gu Sejong-daero 110 Kim Min-jun

Local format (Korean)

03141 서울특별시 종로구 세종대로 110 김민준

Postal code (우편번호) rules

Field namePostal code (우편번호)
FormatNNNNN (N = digit, A = letter)
Example03141
Pattern^\d{5}$
Rule5 digits, no separator. Korea switched from the old 6-digit (NNN-NNN) system to 5-digit codes in 2015.

Fields used in South Korea

State / regionYes — "Province / Special city" locally
Street addressYes — "Road name and building number" locally
P.O. BoxNo

FAQ

What is the Postal code (우편번호) format in South Korea?

The format is NNNNN (N = digit, A = letter), for example 03141. 5 digits, no separator. Korea switched from the old 6-digit (NNN-NNN) system to 5-digit codes in 2015.

How do you write an address in South Korea?

South Korea addresses are written from the largest unit to the smallest. Korean addresses are written from the largest unit to the smallest: 5-digit postal code on its own line, then province/special city, then city or district (si/gun/gu), then road name with building number (e.g. Sejong-daero 110), then the recipient. Since 2014 road-name addresses have officially replaced the old lot-number (dong/ri) system.

Does South Korea use postal codes?

Yes. South Korea uses the Postal code (우편번호) in the format NNNNN (example: 03141). 5 digits, no separator. Korea switched from the old 6-digit (NNN-NNN) system to 5-digit codes in 2015.

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