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  4. Postal Code 31023

South Korea Postal Code 31023 Boundary Map

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Postal Code31023
Postal Code NameCheonan-si
ProvinceChungcheongnam-do
CountyCheonan-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes31006
31020
31021
31022
31024
31032

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