US States Zip Directory 2026

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Currently We have more than 42735 Records of US States Zip Codes from all over the United States!

Guam Zip Codes



Guam Guam is an organized, unincorporated territory of the United States located in the western Pacific Ocean. It is one of five U.S. territories with an established civilian government. Guam is listed as one of sixteen Non-Self-Governing Territories by the Special Committee on Decolonization of the United Nations. The island s capital is Hagåtña (formerly Agaña). Guam is the largest and southernmost of the Mariana Islands.

State Zip Code City County Area Codes
GU 96910 Hagatna 671
GU 96912 Dededo 671
GU 96913 Barrigada 671
GU 96915 Santa Rita 671
GU 96916 Merizo 671
GU 96917 Inarajan 671
GU 96919 Agana Heights 671
GU 96921 Barrigada 671
GU 96923 Mangilao 671
GU 96928 Agat 671
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Map of Guam



ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.


ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. 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. The last line of a foreign address must only show the name of the country of destination.