Japan Postal Codes & Zip Codes - Format, List & Examples

Japan Postal Codes - Format, Structure & Examples by Prefecture

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Access structured postal code data for Japan, including streets, cities, postal codes, and prefectural information. Designed for business, analytics, logistics, data enrichment, and location-based applications.

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Dataset Overview

PostcodeZip provides a ready-to-use database covering 124,084 streets across 1,885 cities and 120,046 postal codes in 47 prefectures of Japan.

  • 124,084 streets
  • 1,885 cities
  • 120,046 postal codes
  • 47 prefectures

What This Data Can Be Used For

  • Address validation and cleanup
  • Autocomplete for forms and search fields
  • Location-based analytics and reporting
  • Database enrichment and segmentation
  • Logistics, delivery, and route planning
  • Geographic applications and mapping tools

Available Files

Depending on your project, you can choose one or more of the following files:

  • Regions file – administrative prefectures and subdivisions
  • Locations file – cities and postal codes
  • Streets file – street-level location data

Each file is available as a sample preview before purchase.

Sample Files Preview

Download a sample file or preview a few example rows before purchasing.

Regions File

Download regions sample

Country Code Country Region1 Region2
JP Japan Aichi prefecture １−３−７）
JP Japan Aichi prefecture 13 mounds
JP Japan Aichi prefecture A

Locations File

Download locations sample

Country Code Country Region City Postal Code
JP Japan Hokkaido Abashiri City 093 - 0002
JP Japan Hokkaido Abashiri City 093 - 0001
JP Japan Hokkaido Abashiri City 093 - 0000

Streets File

Download streets sample

Country Code Country Region City Street
JP Japan Hokkaido Abashiri City Main street
JP Japan Osaka Abeno Ward, Osaka City Main street
JP Japan Hokkaido Abira Town, Yufutsu District Main street

Sample data for preview purposes only.

Why This Dataset Is Useful

This database makes it easier to work with real geographic data in a structured format. It can help standardize address inputs, improve form completion, match existing customer records, and support internal analysis by city, postal code, street, or prefecture.

It is also useful for teams building applications that rely on real postal and location data, including CRMs, business directories, delivery systems, mapping tools, and reporting platforms.

Data Structure

Depending on the selected file, the dataset may include the following fields:

  • Country code
  • Country name
  • Prefecture
  • City
  • Postal code
  • Street

Formats and Delivery

Files are available in CSV, Excel, SQL, and XML format, depending on the selected product.

After purchase, your files are delivered in a downloadable archive and can be used immediately.

Updates and Purchase

This is a one-time purchase. The dataset is maintained regularly, and additional updates may be available on request.

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