Postal Code 311-1301 in Isohamacho, Oarai Machi, Higashiibaraki Gun
Verified postal code reference for 311-1301 in Isohamacho, Japan. Includes locality context, administrative hierarchy, and approximate centroid coordinates for validation and integration workflows.
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Geographic & Administrative Context
The postal identifier 311-1301 is under the regional jurisdiction of Japan. Within this territory, it is specifically managed as part of the Ibaraki Ken » Higashiibaraki Gun » Oarai Machi » Isohamacho administrative chain, ensuring precise logistical and geographic synchronization with official geocoded registries.