Westernport MD ZIP Code
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Westernport city is located in Maryland State, Allegany County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Westernport MD zip code by its streets and block numbers if we have some of the Westernport streets loaded in our website
Westernport Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).
Westernport Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Westernport City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Westernport ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Westernport, Maryland.
The Westernport Zip Code is 21562.
If you want to send a mail to Westernport City, you should use the 21562 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Westernport 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 21562 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Westernport 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 Maryland.