South Korea Address Format Guide: Structure & Examples

May 6, 2026

Updated: May 6, 2026

Table of Contents

South Korea Address Format Guide

In this comprehensive guide, we’ll explore the standard address format used in South Korea. Whether you’re shipping packages, sending mail, or validating addresses for your business, understanding the proper address structure is essential for successful deliveries. We’ll cover the basic elements, provide examples, and explain how GeoPostcodes can help with address validation.

South Korea - Address Format

An address format in South Korea contains the following elements:

Recipient’s name
Business or department name (if applicable)
House number and Street name
City Name and Postal Code (5 digits)
Country – SOUTH KOREA (in all caps)

John Smith
1001 Jungang-daero
Busan 47545
SOUTH KOREA

South Korea Address Format Examples

Example 1:

John Smith
71-6 Hwajeon-dong
Jeonju-si 54804
SOUTH KOREA

Example 2:

South Korea Post Office
70 Sogong-ro
Seoul 04535
SOUTH KOREA

Postal and Country Information for South Korea

Country/territory name	South Korea
ISO codes	ISO 3166-1 alpha-2: KR ISO 3166-1 alpha-3: KOR ISO 3166-1 numeric-1: 410
Administrative area count	17
Administration area names and abbreviations	Seoul Sejong Busan Daegu Daejeon Gwangju Incheon Ulsan Chungcheongbuk Chungcheongnam Gyeonggi Gyeongsangbuk Gyeongsangnam Jeollanam Jeonbuk Gangwon Jeju	11 50 26 27 30 29 28 31 43 44 41 47 48 46 45 42 49
Term to describe postal codes	우편번호
Postal code format	99999
Population	51 552 840
Total land area	100 811km²

How to Validate Addresses for South Korea Using GeoPostcodes Database

GeoPostcodes offers comprehensive address validation database to validate South Korea addresses. Our database ensures addresses follow the correct format for South Korea, reducing delivery errors and improving efficiency.

Use GeoPostcodes:

Address Database to validate Street Names, Cities, and Postal Codes in South Korea
Postal Database if you only need to validate Cities, and Postal Codes in South Korea
Population Database if you would like to do urban/rural mapping or compute how many people live in South Korea segmented by postal code, city or administrative divisions

You can leverage GeoPostcodes data to validate addresses in South Korea using:

Street column to validate Street names
Region 1 column to validate City Names*
Postcode column to validate Postal Codes

*If Region 1 is Jeonbuk, Gyeongsangnam, Jeollanam, Chungcheongbuk, Chungcheongnam, Gyeonggi or Gyeongsangbuk, use Region 2 to validate the City Names.

Explore our South Korea address database.

Our location dataset for South Korea

Explore our comprehensive collection of South Korea ZIP code and administrative data products, designed to meet all your mapping and location intelligence needs.

South Korea ZIP Codes

South Korea uses a “우편번호” (postal code) system, which is a five-digit numeric format like 99999, with no letters or separators. This means it uses only numbers, and is the same as the US ZIP codes. According to the GeoPostcodes world postal code database, South Korea has 34,395 postal codes covering 269 regions and 5,050 towns.

South Korea ZIP & Administrative boundaries

South Korea administrative landscape often follows inconsistent regional models and irregular public sources, making it difficult to maintain reliable boundaries. Our standardized postal and administrative boundary data resolves these gaps to ensure complete, coherent geographic coverage.

South Korea Administrative Divisions

GeoPostcodes provides a standardized reference for South Korea’s address structure, ensuring consistent, accurate, and globally aligned formatting across your systems. The dataset captures the official address elements required by the national postal operator and maps them into our unified global schema.