Gunma Postal Codes

Postal codes and localities in Gunma

This page groups the available seven-digit postal codes for Gunma with their municipality and neighborhood names. Use the table to identify a likely postal area, then check the remaining address details before mailing. A postal code alone does not identify a complete delivery address.

This Gunma page brings together 1,499 postal code records from the published Japan directory. Compare the seven-digit codes with their municipalities and neighborhood names to narrow down a likely mailing area. Similar place names can occur in different prefectures, so keep the prefecture and complete address with the code. Use Japan Post's official search to verify a current code before mailing.

A postal code helps route mail to an area, but it does not replace the rest of a Japanese address. Check the prefecture, municipality, neighborhood, block, building and recipient details that apply to the destination. For the most current mailing instructions and postal code data, consult Japan Post before sending important mail.

Browse this directory to locate postal areas, then verify current code and address details with Japan Post when accurate delivery matters. Japan Post postal code information ↗