Republic Of Korea Postal Code Details

Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.

🌍

Follow Local Address Conventions:

Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.

✅

Verify Before Dispatch:

Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.

💡

Delivery Information Is Context-Specific:

Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.

Postal information, sources and verification

Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.

Editorial and service accountability

This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.

This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.

Privacy, terms and disclaimer

Your search terms are handled under our Privacy Policy. Review our Terms of Service and disclaimer before relying on any logistics or delivery information.

📮Republic Of Korea Postal FAQ and delivery guidance

🔢 How many digits is a South Korean postal code?

South Korean postal codes are 5-digit numbers (e.g., 06164), fully implemented since 2015.

🏢 What do the first two digits represent?

They indicate the province/metropolitan city (e.g., 01-08 for Seoul, 48-49 for Busan).

🌐 How to find a Korean postal code?

Use the "우편번호 검색" (postal code search) on Korea Post's official website (www.epost.go.kr) by entering the Korean address.

✈️ Is the postal code mandatory for international mail?

Yes! Correct codes speed up processing. Always include "KOREA/REP. OF KOREA" on international mail.

❌ What if I write a wrong postal code?

Delivery may be delayed by 3-5 days as mail is manually sorted. Incomplete addresses may cause return or loss.