Korea Address Search
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About this Tool
Comprehensive Korea Postal Code Lookup & English Address Converter that instantly searches South Korean 5-digit national zone postal codes and generates official Romanized street addresses. By automatically parsing complex Korean addresses into international standard components (Address Line 1, Address Line 2, City, State/Province, and Postal Code), it simplifies shipping forms for global eCommerce (Amazon, AliExpress, eBay, iHerb) and international customs declarations. Integrated with the official Ministry of the Interior and Safety road-name database via Kakao Postcode API, it delivers authentic government-approved Romanization with zero server tracking.
Processed safely on your device
Everything happens in your browser on this device. Your files are never sent to our servers—so you can use it with peace of mind.
How to Use
Click the Address Search button or input field to launch the integrated postal directory popup.
Enter any Korean road name (e.g., Sejong-daero 110), landmark building name, or dong/jibun parcel number to view matching listings.
Type in your unit details such as apartment building number, suite, or room number to complete the full destination address.
Review the 5-digit postal code, Korean road-name address, and structured English lines (Line 1/2, City, State, Zip Code), then click Copy.
Key Scenarios & Use Cases
International eCommerce Shipping & Checkout Forms
Accurately fill out shipping address forms on Amazon, eBay, AliExpress, and international shopping platforms without delivery errors.
Customs Declarations & Personal Customs Clearance Code
Ensure your English address strictly conforms to the official Korean postal standard for smooth customs clearance and PCC registration.
International Invoices & Cross-Border B2B Contracts
Format company and personal addresses for global invoices, contracts, and financial wire transfers adhering to WPU international postal conventions.
Apartment Unit & Floor Identification
Convert apartment building and unit numbers into globally recognized formats (e.g., 101-dong 203-ho) so domestic and international couriers can locate your door effortlessly.
Migration from Legacy 6-Digit Codes to 5-Digit Postal Codes
Quickly look up current 5-digit national postal codes (introduced in 2015) replacing outdated 6-digit (XXX-XXX) zip codes.
Frequently Asked Questions (FAQ)
Yes. The 5-digit postal code represents the National Basic District Number introduced in August 2015. Whether you search by road name or Jibun parcel number, the resulting 5-digit code is identical.
Address Line 1 is typically used for the street address and building number (e.g., 123 Teheran-ro), while Address Line 2 is for apartment numbers, unit identifiers, or suite numbers (e.g., 101-dong 203-ho). Our tool automatically breaks these down into separate fields for easy copying.
For apartment 101-dong 203-ho, writing '101-dong 203-ho' is optimal. Since local Korean postal carriers handle the last-mile delivery once the package enters South Korea, '101-dong 203-ho' prevents any delivery misinterpretation.
Yes. The tool connects to the Kakao Postcode service, which is built directly on the official Korean Ministry of the Interior and Safety road-name address database and Korea Post data.
No. All address lookups are processed strictly within your client browser. Your personal address entries are never sent to or stored on AllThatConverter servers.
Addresses follow the official Revised Romanization of Korean issued by the Ministry of Culture, Sports and Tourism, ensuring proper spellings such as 'Seoul', 'Gyeonggi-do', and 'Gangnam-gu'.