In certain situations, the USPS will return multiple possible correct addresses for the address you’re trying to standardize. This is most common when your address is missing a specific unit number. In some cases, each unit has its own ZIP+4 Code. The USPS returns a default ZIP+4 Code to PostCheck which is not always the correct one for your address.

The 1.8.2 update no longer adds the +4 portion to the ZIP Code when multiple addresses are found, but will still fill in the standard 5-digit code. This is the safer way to go and should make batch-updates more reliable.

Feedback is welcome.

As usual, the update can be downloaded from the PostCheck page. Thanks!

Sorry for any inconvenience.

I’ve added an option in the PostCheck Options window to disable the lookup of +4 ZIP Codes. Since I got an iPhone, I’ve noticed that many of my contact’s addresses wrap to another line with the +4 codes. I didn’t care how this looks, and there’s no sense in having ugly addresses on such a nice phone, is there?

I have some other little things in store for PostCheck, too, they just take more testing.

Head on over to the PostCheck page to download the latest version (free update for all current PostCheck customers).

However, this post is not about my Google Maps Plugin, rather, it’s about PostCheck! Leopard’s built-in Google Maps function works best when your address are formated properly using USPS standards. (My Google plugins work best if they are too, but have ways to get around some common issues.) PostCheck will format your US addresses to proper standards and fill in missing information such as ZIP+4 codes.

Once your addresses have been formated with PostCheck, Google will have much more success finding it. Give the demo version a try and if you like you what you see, the full version is only $10 and includes the time saving batch lookup feature to get all of your address up-to-date.