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  4. Postal Code 28405

South Korea Postal Code 28405 Boundary Map

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Postal Code28405
Postal Code NameCheongju-si
ProvinceChungcheongbuk-do
CountyCheongju-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes28382
28384
28403
28404
28406
28410
28411

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