Postal address
Koizumi, Tsukuba Shi
The postal code of Koizumi, in Tsukuba Shi (Ibaraki Ken, Japón), is 300-4236. Include it in your shipments and forms.
Location
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Koizumi
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Frequently asked questions
What is the postal code of Koizumi?
The main postal code of Koizumi (Tsukuba Shi, Japón) is 300-4236.