United States ZIP Codes – All US Postal Codes by States

This post contains all updated United States ZIP Codes – List of all US Postal Code (ZIP codes) for all regions — by states, territories and cities.

Citing Wikipedia, A ZIP Code is a postal code used by the United States Postal Service (USPS). Introduced in 1963, the basic format consisted of five digits. In 1983, an extended ZIP+4 code was introduced; it included the five digits of the ZIP Code, followed by a hyphen and four digits that designated a more specific location.

The ‘ZIP’ code which stands for Zone Improvement Plan is very important for a successful mail and package distribution, knowing that a lot of growth had happened in the e-commerce industry these past years, it’s crucial to know when and how to use the right USPS ZIP code for your preferred region or state to avoid sending your parcel to the wrong location.

That said, here on Naijaknowhow.net, you will find all the postal codes for all the states in the United States of America — cities, areas and top regions.

The United States ZIP Codes – List of All US Postal Code by States

Aside from the major states (listed above) in the United States, there are five additional territories (which include American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands) which are permanently inhabited, unincorporated territories; the other nine are small islands, atolls, and reefs with no native (or permanent) population.

So here are the postal codes for these 5 inhabited territories together with the Federal District of the United States.

United States ZIP Codes – Other Territories