Postal address
Koya, Isumi Gun
The postal code of Koya, in Isumi Gun (Chiba Ken, Japón), is 298-0211. Include it in your shipments and forms.
Location
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Koya
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Frequently asked questions
What is the postal code of Koya?
The main postal code of Koya (Isumi Gun, Japón) is 298-0211.