In conjunction with the United States Postal Service (USPS), FMS is pleased to offer Total ZipCode Database--a monthly subscription to the official USPS zip code database.
When you order Total ZipCode Database, we provide you with a URL, user name, and password for downloading the ZipCode data. The data is updated on a monthly basis, and we email when the new data is available.
Contact us if you are not receiving your email notifications.
"Of all the features I added, automatically filling city and state names when a user entered a zip code turned out to be what my users loved the most.
It not only took the least time, it also cost the least to implement. I still can't believe it!"
Anonymous Incredulous Developer