ZIP Code / Postal Code / Postcode
5-digit Korean postal code
TOOLS
Korea Postal Code Lookup
Enter a Korean address, road name, building number, or English road address to find the correct 5-digit Korean postal code. This tool helps travelers and foreigners fill out shipping forms, hotel forms, online orders, and Korean address fields.
Quick answer
Quick answer: Korean postal codes are 5-digit numbers used for mail, delivery, shipping, and online forms in Korea. Enter a Korean road address, building number, or English road address to find the postal code and copy it for your form.
Find a Korean postal code
You can search by Korean address, road name, building number, postal code, or English road address.
Try: Gangnam-daero 396 · Myeongdong-gil · Ieum 3-ro · 04524
Postal code lookup
No postal code results found for "Jeju airport".
Try a road name, building number, or Korean address keyword.
Check the official Korean address systemExternal site opens in a new tab.
How to enter a Korean postal code in online forms
When a form asks for ZIP Code, Postal Code, or Postcode, enter the 5-digit Korean postal code. If the form asks for State or Province, you can usually enter the city or province name such as Seoul, Busan, Incheon, Gyeonggi-do, or Jeju-do.
| Form field | What to enter |
|---|---|
| ZIP Code / Postal Code / Postcode | 5-digit Korean postal code |
| Address Line 1 | Road address |
| Address Line 2 | Apartment, unit, floor, or room number |
| City | City, district, or province depending on the form |
| Country | Republic of Korea or South Korea |
Address Line 1
Road address
Address Line 2
Apartment, unit, floor, or room number
City
City, district, or province depending on the form
Country
Republic of Korea or South Korea
Different websites may use different address fields. If a form does not accept your Korean address, try separating the postal code, road address, and apartment details into different fields.
Need the full English address? Use the Korean Address Converter.
Filling out a Korean delivery or hotel form? Use the Korean Phone Number Format tool.
Ordering, booking, or paying in Korea? Read the Cash & Card Guide.
Why Korean postal codes matter
Korea switched to a five-digit postal code system in 2015, replacing the older six-digit format. Every road-name address maps to a five-digit code, and most Korean delivery and e-commerce forms require it.
If you enter the wrong code, packages can be delayed or returned, so it is worth confirming before you submit any shipping, hotel, delivery, or official form. Enter the road name, district, building number, Korean address, English road keyword, or postal code and match the result to the building you need.
When you need a Korean postal code
Common situations include Korean online shopping checkout, hotel or guesthouse address forms, customs or immigration documents, long-stay apartment delivery, and Weverse, Coupang, Gmarket, Naver-style forms.
Postal codes and Korean road-name addresses should be confirmed with official Korean address data when accuracy matters. For delivery, hotel, immigration, or official documents, always check that the postal code matches the exact road-name address.
How Korean postal codes work
Korean postal codes are 5-digit numbers used for mail sorting, delivery, shipping, and address forms. They are usually shown together with Korean road addresses and can be used when sending mail or packages to Korea.
Korea uses road name addresses based on road names and building numbers. A postal code is usually linked to the road address or delivery area, not to a person's name or phone number.
Try these search examples
Official Korean address and postal information
For official and updated Korean address information, check the official Korean road name address and postal information services below.
Korean Road Name Address System
Official Korean road name address service for searching road addresses, building numbers, and address information.
Open Road Name Address GuideExternal site opens in a new tab.
Korea Post
Official Korea Post information for postal codes, delivery areas, and mailing address guidance.
Open Korea Post GuideExternal site opens in a new tab.
Korea Postal Code Lookup FAQ
What is a Korean postal code?
A Korean postal code is a 5-digit number used for mail, delivery, shipping, and address forms in Korea.
Is a Korean postal code the same as a ZIP code?
Yes, when an international form asks for ZIP Code, Postal Code, or Postcode for a Korean address, you usually enter the 5-digit Korean postal code.
How many digits are Korean postal codes?
Korean postal codes use 5 digits.
How do I find a postal code in Korea?
Enter a Korean address, road name, building number, or English road address into the lookup tool to find the matching postal code.
Can I search by English address?
Yes. You can search by English road address, road name, or building number when available.
Can I search by Korean address?
Yes. You can enter a Korean road address, lot address, road name, or building number.
Where should I enter the postal code in an online form?
Enter the 5-digit Korean postal code in the ZIP Code, Postal Code, or Postcode field.
What should I enter for Address Line 1?
Enter the Korean road address or English road address.
What should I enter for Address Line 2?
Enter apartment, unit, floor, room number, or other detailed address information.
Do I need a postal code to send mail to Korea?
It is recommended to include the postal code when sending mail or packages to Korea because it helps with sorting and delivery.
Why does my Korean address not work in an overseas form?
Some overseas forms do not support Korean address formats well. Try separating the postal code, road address, city, and apartment details into different fields.
Does this tool verify if someone lives at the address?
No. This tool only helps find Korean postal codes and address information. It does not verify residents, phone numbers, ownership, or delivery status.