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  4. Postal Code 31209

South Korea Postal Code 31209 Boundary Map

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Postal Code31209
Postal Code NameCheonan-si
ProvinceChungcheongnam-do
CountyCheonan-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes31178
31203
31204
31208
31210
31474

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