Areazipcode.org is a United State postal code directory which contains information about more than 40 thousands zip code of US. In addition to zip code details it also contains city and state information.
Areazipcode.org consolidates census, tax, ssn and demographic information into a single page presentation.
The term ZIP is an acronym for Zone Improvement Plan. It was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address the basic format consists of five digits. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address.