Find Japan Postcodes Inside User Defined Area

A map of Japan where you can draw a custom area on the map, then perform a search to return all the Japanese Postal codes found inside the area.

Find Japan Postcode Inside User Defined Area Map



 Delete Last Point 

 Clear Map 

 Zoom To Fit 

CSV Output

List of Postcodes found...

 Toggle CSV or New Line 


Draw a free form shape on the map to define the area. Once you have drawn the area, click the [Search For Postcodes] button. After a short delay, the system will then return all Japanese postcodes contained inside the area. If you hover over a marker, you will see it's Japan postal code.

When drawing the area around Japan, click to add new nodes. You can reposition a node of add a new node on a mid-point. You can delete node by right clicking on it. If you want to start from the beginning, click [Clear All Points].

You can find a comma separated list of the Japan postal codes in the large text box below the map.

There are also buttons [Zoom to Fit] and [Full Screen] to assist you.

Version History

  • 15th January 2019 : Version 2.1 - Polygon is now editable
  • 12th January 2019 : Version 2.0 - Changed to Leaflet Maps
  • 24th February 2016 : Version 1 - Initial Version

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