Portland ND ZIP Code
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Portland city is located in North Dakota State, Traill County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Portland ND zip code by its streets and block numbers if we have some of the Portland streets loaded in our website
Portland Area Code is 701 and Time Zone is Central (GMT -06:00).
Portland Zip Code - North Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Portland City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Portland ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Portland, North Dakota.
The Portland Zip Code is 58274.
If you want to send a mail to Portland City, you should use the 58274 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Portland 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 58274 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Portland 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 North Dakota.