Zip code data in Japan by Japan Post

This is a repository that stores snapshots of Japan Post's zip code data.

The original download page reuses the same URLs without version control, making it difficult to track changes. To ensure reproducible builds, this repository preserves snapshots of the zip code data with clear versioning.

Files

jigyosho.zip

Zip code data for offices (事業所 / Jigyosho).

• URL: https://www.post.japanpost.jp/zipcode/dl/jigyosyo/zip/jigyosyo.zip
• Date: 2025-01-12
• SHA256: 0e62af72f56a3039409dc105057051df0e374c2e373a2a068172daaaa1a9af13

ken_all.zip

Zip code data for addresses in all prefectures (県 / Ken).

• URL: https://www.post.japanpost.jp/zipcode/dl/kogaki/zip/ken_all.zip
• Date: 2025-01-12
• SHA256: 8736e6a331be40582cfbd86e77c29b6efdbc8425052877e235c8a3c1f7190150

Licenses

jigyosho.zip

https://www.post.japanpost.jp/zipcode/dl/jigyosyo/readme.html

大口事業所個別番号データに限っては日本郵便株式会社は著作権を主張しません。 自由に配布していただいて結構です。日本郵便株式会社への許諾も必要ありません。

(English translation as a reference) Regarding the Large-scale Business Establishment Individual Number Data, Japan Post Co., Ltd. does not assert any copyright. You are free to distribute it. No permission from Japan Post Co., Ltd. is required.

ken_all.zip

https://www.post.japanpost.jp/zipcode/dl/readme.html

郵便番号データに限っては日本郵便株式会社は著作権を主張しません。 自由に配布していただいて結構です。

(English translation as a reference) Regarding the postal code data, Japan Post Co., Ltd. does not assert any copyright. You are free to distribute it.