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: 2025-03-08
• SHA256: 1c56e79ff4c7f709778e0bf4dfbffdf939efd170845feccae986d22cf4373988

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: 2025-03-08
• SHA256: 296cfa57f2012c0226afbc64e9e8575fc36285d2fa31d725a176548cd173b3df

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.