South Korea Postal Code 57701 Boundary Map
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| Postal Code | 57701 |
| Postal Code Name | Gwangyang-si |
| Province | Jeollanam-do |
| County | Gwangyang-si |
| Timezone | Korean Standard Time (KST) |
| Adjacent Postal Codes | 57700 57702 57704 57728 57729 57730 57903 |