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  4. Postal Code 28657

South Korea Postal Code 28657 Boundary Map

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Postal Code28657
Postal Code NameCheongju-si
ProvinceChungcheongbuk-do
CountyCheongju-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes28652
28653
28656
28658
28669
28672

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