Japan Postal Codes & Zip Codes - Format, List & Examples
Japan Postal Codes - Format, Structure & Examples by Prefecture
Access structured postal-code data for Japan, including prefectures, cities, postal codes, streets, and house-level addresses where available. Designed for business, analytics, logistics, data enrichment, and location-based applications.
View Sample Files | Get Full Dataset
Dataset Overview
PostcodeZip provides a ready-to-use database covering 120,046 postal codes across 1,885 cities and 47 prefectures of Japan. The most common street name in our export is Main street with 124,084 occurrences in the dataset.
- 120,046 postal codes
- 1,885 cities
- 47 prefectures
- Most common street: Main street (124,084 occurrences)
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
- Addresses file - house-number-level addresses (where available)
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
| Country Code | Country | Region | Region2 | Region3 | Region4 |
|---|---|---|---|---|---|
| JP | Japan | Fukushima Prefecture | In the song | ||
| JP | Japan | Niigata Prefecture | Box Rock | ||
| JP | Japan | Hokkaido | North 34th east |
Locations File
| Country Code | Country | Region | City | Postal Code |
|---|---|---|---|---|
| JP | Japan | Aomori Prefecture | Tsugaru City | 038 - 3304 |
| JP | Japan | Fukushima Prefecture | Aizuwakamatsu City | 965 - 0056 |
| JP | Japan | Gifu Prefecture | Gifu City | 502 - 0858 |
Streets File
| Country Code | Country | Region | City | Postal Code | Street | Latitude | Longitude | Elevation (m) | Geocoding Level | Accuracy Radius (m) |
|---|---|---|---|---|---|---|---|---|---|---|
| JP | Japan | Tokyo | Sumida Ward | 130 - 0002 | Main street | 35.7080666 | 139.8117118 | 6 | POSTAL_CODE | 5000 |
| JP | Japan | Tokyo | Shinjuku ward | 163 - 0927 | Main street | 35.8922487 | 139.6842152 | 4 | CITY | 1000 |
| JP | Japan | Fukushima Prefecture | Date City | 052 - 0026 | Main street | 42.4691076 | 140.8609931 | 5 | POSTAL_CODE | 5000 |
Addresses File
| Country Code | Country | Region | City | Postal Code | Street | Number | Latitude | Longitude | Elevation (m) |
|---|---|---|---|---|---|---|---|---|---|
| JP | Japan | Toyama Prefecture | Takaoka City | 933 - 0804 | Main street | 36.7292930 | 137.0254150 | 13 | |
| JP | Japan | Ehime Prefecture | Imabari | 794 - 0061 | Main street | 34.0658182 | 132.9976758 | 6 | |
| JP | Japan | Akita | Yuzawa City | 012 - 0033 | Main street | 39.1659128 | 140.4831151 | 82 |
Sample data for preview purposes only.
Why This Dataset Is Useful
This database makes it easier to work with real postal and geographic data in a structured format. It helps standardize postal-code 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 accurate postal-code 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
- Region (prefecture)
- City
- Postal code
- Street
- Latitude
- Longitude
- Elevation
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; Updated on October 19, 2026. Additional updates may be available on request.