South Korea Address Format Guide
South Korea retired its decades-old 6-digit postcode system in 2015 in favor of a 5-digit "new postal code," which is tied to the country's road-name address system rather than the old administrative-district numbering. The standard address order is: road-name address (province/city + district + street name + building number), then detailed address (floor, unit), then the 5-digit postcode — for example "Gangnam-gu, Seoul, Teheran-ro 152, 3rd floor, 06236". This tool covers all 17 of South Korea's top-level administrative regions.
Addresses generated by this tool for South Korea are rule-based test data, not backed by a real geographic database. They are intended only for form validation, checkout flow testing, database population, UI prototyping, and localization testing — not for use as a real delivery address or identity proof.
FAQ
How many digits are in a South Korean postcode?
South Korea currently uses a 5-digit postcode, introduced in August 2015 to replace the older 6-digit system. The two numbering schemes aren't interchangeable, so forms should always use the newer 5-digit code.
What's the difference between a road-name address and the old-style address?
Around 2014, South Korea completed a nationwide switch from old-style addresses based on neighborhood/village units to a road-name address system built around street names and building numbers, similar to Western-style street addressing. Official documents, delivery services, and navigation apps now all use road-name addresses, which is the format this tool generates.
Does it cover all 17 top-level administrative regions of South Korea?
Yes, including special/metropolitan cities like Seoul and Busan as well as provinces like Gyeonggi-do. You can specify one or generate randomly.
Can these addresses be used for real deliveries?
No, the generated results are fictional test data intended only for format reference and development testing.
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