The Lucas Eckels Blog

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Tuesday, February 21, 2006

Automatically find zip codes in Address Book

[Updated for 10.7 Lion]

[This plugin uses Yahoo’s maps API, which was shut down in September 2011.  I don’t know if I’ll find time to switch to another data provider, so it’s broken for the time being]

Anne was putting together wedding invitations and asked me if Address Book could look up zip codes. Now it can. She likes it — maybe you will, too.

This is just a small Address Book plugin. It adds a menu item so that when you click on an address, you can find a ZIP code (including ZIP+4 for most addresses) and set it automatically.

To install, copy FindZip.bundle inside of ~/Library/Address Book Plug-Ins or /Library/Address Book Plug-Ins — creating the folder if it’s not already there. You’ll need to restart Address Book to get the menu to appear.

FindZip now requires Mac OS X 10.5 or later and is tested on 10.6 and 10.7.

FindZip comes with no warranty. While I have made every effort to make it as bug-free as possible, it may trash your address book, computer, and your car — though most likely the zip code. Let me know if you have any problems.

Download FindZip 1.0b3 (16k)

posted by Lucas at 4:31 pm  


  1. sweet little plugin! Thanks for sharing.
    Oakland, CA

    Comment by Anonymous — December 13, 2006 @ 11:39 am

  2. I wish I could get it to work.. someone please help me

    Comment by scottws2000 — February 21, 2007 @ 9:58 pm

  3. Nice plugin! Thanks for sharing this great tool!

    Comment by Anonymous — May 2, 2007 @ 6:04 pm

  4. The download link no longer works? I’d be interested in installing this, if you’d make the file available again. Thanks!

    [Lucas: I’ve fixed the download links]

    Comment by Josh Rafofsky — April 15, 2008 @ 7:48 am

  5. can this program of your work with OS Lion Fid Zip AUTOMATICALLY FIND ZIP CODES IN ADDRESS BOOK?

    Comment by Scott — July 20, 2011 @ 10:11 am

  6. Thanks for the interest, Scott! I’ve updated the plug-in for Lion.

    Comment by Lucas — July 20, 2011 @ 11:28 am

  7. Nice little plugin – thanks :)

    Could you offer an alternate one that would only return the 5-digit ZIP?

    Or somehow put in a pref that would allow this choice…

    Thanks again!

    Comment by Ed — August 19, 2011 @ 1:43 am

  8. Huh… it’s stopped working, apparently. Just noticed this today.. was working fine before.

    Did something recently change with the API for Google Maps?

    Comment by Ed — October 7, 2011 @ 12:46 pm

  9. Actually, it uses the Yahoo maps API, which was evidently shut down on September 13th. I’m not sure if/when I’ll find time to update the plugin for another provider.

    Sorry, Ed! Thanks for your interest.

    Comment by Lucas — October 7, 2011 @ 3:17 pm

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