Waipahu HI ZIP Code
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Waipahu city is located in Hawaii State, Honolulu County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Waipahu HI zip code by its streets and block numbers if we have some of the Waipahu streets loaded in our website
Waipahu Area Code is 808 and Time Zone is Hawaii-Aleutian Islands (GMT -10:00).
Waipahu Zip Code - Hawaii
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Waipahu City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Waipahu ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Waipahu, Hawaii.
The Waipahu Zip Code is 96797.
If you want to send a mail to Waipahu City, you should use the 96797 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Waipahu ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 96797 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Waipahu city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Hawaii.