Korea, South Postal Codes

Korea, South uses postal codes in the format ##### (# = digit, @ = letter).

34,249 postal codes are recorded for Korea, South in the open data sources below.

In Korea, South a postal code is called a 우편번호 (upyeon beonho). You will see that term on forms and address labels.

Postal codes by town and city

1,383 places in Korea, South have a recorded postal code. The 536 largest have their own page; the rest are listed alphabetically.

Largest towns and cities

동래구  ·  부산진구  ·  사상구  ·  사하구  ·  수영구  ·  연제구  ·  영도구  ·  가창면  ·  논공읍  ·  다사읍  ·  다산면  ·  달서구  ·  도산면  ·  수성구  ·  화원읍  ·  계룡시  ·  대덕구  ·  대덕면  ·  두마면  ·  서구  ·  엄사면  ·  옥산면  ·  유성구  ·  봉담읍  ·  수원시 권선구  ·  수원시 영통구  ·  수원시 장안구  ·  수원시 팔달구  ·  용인시 기흥구  ·  용인시 수지구  ·  동해면  ·  범서읍  ·  언양읍  ·  온산읍  ·  온양읍  ·  청량읍  ·  고양시 덕양구  ·  고양시 일산동구  ·  조리읍  ·  파주시

Browse every place A–Z

ㅂ  ㅊ  ㄷ  ㄱ  ㅎ  ㅈ  ㅁ  ㄴ  ㅇ  ㅍ  ㅅ  ㅆ  ㅌ

Example postal codes

• 03051

Largest places and their postal codes

The 60 largest places in Korea, South by population, with a postal code for each. Larger towns link to their own page.

Watch the leading zero

Some Korea, South postal codes begin with a zero, such as 01000. Spreadsheets and some web forms silently drop it, turning 01000 into 1000 — which is either a different place or not a valid code at all. Format the column as text before pasting codes into a spreadsheet.

How an address is written in Korea, South

This is the order Korea, South's postal service expects. Square brackets mark what you replace.

[Province (do/si)] [City][District]
[Street address]
[Recipient name]
[Postal code (03051)]
KOREA, SOUTH

A postal code is required in a complete Korea, South address. The postal code should be written in capital letters. The province (do/si) is also required.

Look up a specific address

For the code covering one particular street or building, Korea, South's postal service publishes an official finder: www.epost.go.kr/search/zipcode/search5.jsp. It is authoritative and kept current, which third-party copies often are not.

Country reference

Sources and licensing

Postal code data from GeoNames, used under the Creative Commons Attribution 4.0 International licence. Address formats and validation rules derive from Google's international address metadata, cross-checked against Universal Postal Union addressing standards. Last verified August 2026. Confirm time-critical addresses with the destination country's postal operator.