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  4. Postal Code 28100

South Korea Postal Code 28100 Boundary Map

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Postal Code28100
Postal Code NameCheongju-si
ProvinceChungcheongbuk-do
CountyCheongju-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes28101
28103
28104
28110
31250
31252
31257

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