Over 33,000 ready made zip codes boundary maps. Just plug the URL into your site, and you're done.
The download file includes all of the zip codes maps as pre-generated HTML tags for you. Just copy/paste into your website and you are done.
The Boundary Map URLs use the Google Staticmaps API. This means the maps will load using Google's bandwidth and will always be up to date and load lightning fast.
These boundary maps are generated using the 2013 zip code data released by the US Census.