ZIP-JP Postalcode Address Search
Link API services to search addresses from Japanese postal codes.
Consider an alternative
ZIP-JP Postalcode Address Search shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 3 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 2 years
- Only tested up to WordPress 6.3 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where ZIP-JP Postalcode Address S… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| address | >100 |
| contact | >100 |
| postal code | >100 |
| postalcode | #5 |
| search | >100 |
Version adoption
Share of active sites per release.
About ZIP-JP Postalcode Address Search
From the official readme · v2.0.0Description
ZIP-JP Postalcode Address Search bridges the ZIP-JP Postalcode Address Search API service (https://zipcode.milkyfieldcompany.com/) with WordPress.
It supports form input with the ability to search for an address by zip code or zip code by address.
It can be easily combined and operated with Contact Form 7.
Please note that the author of this plugin is not related to the developer of Contact Form 7 plugin.
Privacy notices
This plugin sends a zip code search request with the keywords required for the search and the IP address of the API caller to a specific external server (ZIP-JP Zip Code Address Search API Service:
https://zipcode.milkyfieldcompany.com/).
In addition, the processing using the API uses the script (https://resources.milkyfieldcompany.com/zip-jp/js/mfczip_finder_wpplugin_v1.js) prepared by ZIP-JP.
All communication done by this plugin is SSL secure.
Besides that, this plugin itself does not do the following.
- Tracks the user by stealth.
- Write the user’s personal information to the database.
- Send data to external servers.
- Use cookies.
usage rules
ZIP-JP Postcode Address Search API usage rules.
ZIP-JP Postalcode Address Search needs your support
If you use ZIP-JP Postalcode Address Search and find it useful, please consider a paid plan for ZIP-JP Postalcode Address Search API service https://zipcode.milkyfieldcompany.com/. This will encourage us to continue developing this plugin and the ZIP-JP Postalcode Address Search service, and to provide better user support.
Installation
- Upload the entire
zip-jp-postalcode-address-searchfolder to the/wp-content/plugins/directory. - Activate the plugin through the Plugins screen (Plugins > Installed Plugins).
You will find Postal Code Address Search menu in your WordPress admin screen.
Frequently asked questions
Is this plugin available for free?
The plug-in is free to use. To use the API, you need to register on the My Page of the API service. My Page registration is free. To improve the quality and service, we hope you will consider a paid plan.
How do you use it?
Please refer to this document. The usage is also explained in the plugin’s configuration screen.
Changelog
Added support for automatic search from postalcode.
1.0.0
- First release of ZIP-JP ZIP Code Search API Plug-in
1.0.1
- fix readme
1.0.2
- fix readme
1.1.0
- admin-ajax.php path fix.
2.0.0
- Supports automatic search from postalcode.
- Changed the standard operation mode to JSONP operation to improve search speed.
- Abolition of wordpress-ajax.
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
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FAQ
ZIP-JP Postalcode Address Search: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 17, 2026
Is ZIP-JP Postalcode Address Search free?
Yes. ZIP-JP Postalcode Address Search is free to download and use from the official WordPress.org plugin directory.
Is ZIP-JP Postalcode Address Search safe to use in 2026?
ZIP-JP Postalcode Address Search shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 3 years ago, and scores 23/100 on our health check.
How many websites use ZIP-JP Postalcode Address Search?
ZIP-JP Postalcode Address Search is active on 10+ WordPress websites and has been downloaded 1,693 times since it launched in August 2021. It was downloaded 40 times in the last 30 days.
Does ZIP-JP Postalcode Address Search work with WordPress 7.1?
ZIP-JP Postalcode Address Search is officially tested up to WordPress 6.3.13, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does ZIP-JP Postalcode Address Search need?
ZIP-JP Postalcode Address Search requires PHP 7.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was ZIP-JP Postalcode Address Search last updated?
The latest version, 2.0.0, was released on October 25, 2023 (3 years ago).
Who makes ZIP-JP Postalcode Address Search?
ZIP-JP Postalcode Address Search is developed and maintained by milkyfield.
What are the best alternatives to ZIP-JP Postalcode Address Search?
The most popular alternatives to ZIP-JP Postalcode Address Search are Custom Post Type Permalinks (200K+ installs), zipaddr-jp (50K+ installs) and Simple Map (10K+ installs).
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