West River MD ZIP Code
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West River city is located in Maryland State, Anne Arundel County and has a unique zip code assigned by the US Postal Service Office.
You can search for the West River MD zip code by its streets and block numbers if we have some of the West River streets loaded in our website
West River Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
West River Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the West River City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the West River ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in West River, Maryland.
The West River Zip Code is 20778.
If you want to send a mail to West River City, you should use the 20778 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded West River 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 20778 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a West River 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.