The postal code of Kōyō which is listed in our database is 090-0814. Our records often include geographical coordinates of Kōyō and it's corresponding postal code.
In the result box below, you can find the postal code of Kōyō and it's location on the map if we have the location information available.
Every postal code is also located in a region or a district, in case we know the district or region of the city it will too be listed in the results.
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