South Korean Postal Codes
History
Specification
Postal Code Prefixes by Province
The first two digits of the postal code represent the province, special cities, metropolitan cities, and special self-governing cities. Futhermore, they are ordered geographically.
Upper-Level District |
District Type |
Postal Code Prefixes |
Seoul |
special city |
01, 02, 03, 04, 05, 06, 07, 08 |
Gyeonggi |
province |
10, 11, 12, 13, 14, 15, 16, 17, 18 |
Incheon |
metropolitan city |
21, 22, 23 |
Gangwon |
province |
24, 25, 26 |
North Chungcheong (Chungcheongbuk) |
province |
27, 28, 29 |
Sejong |
metropolitan city |
30 |
South Chungcheong (Chungcheongnam) |
province |
31, 32, 33 |
Daejeon |
metropolitan city |
34, 35 |
North Gyeongsang (Gyeongsangbuk) |
province |
36, 37, 38, 39, 40 |
Daegu |
metropolitan city |
41, 42, 43 |
Ulsan |
metropolitan city |
44, 45 |
Busan |
metropolitan city |
46, 47, 48, 49 |
South Gyeongsang (Gyeongsangnam) |
province |
50, 51, 52, 53 |
North Jeolla (Jeollabuk) |
province |
54, 55, 56 |
South Jeolla (Jeollanam) |
province |
57, 58, 59 |
Gwangju |
metropolitan city |
61, 62 |
Jeju island |
special self-governing city |
63 |