Riva MD ZIP Code
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Riva 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 Riva MD zip code by its streets and block numbers if we have some of the Riva streets loaded in our website
Riva Area Code is 410/301 and Time Zone is Eastern (GMT -05:00).
Riva Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Riva City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Riva ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Riva, Maryland.
The Riva Zip Code is 21140.
If you want to send a mail to Riva City, you should use the 21140 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Riva 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 21140 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Riva 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.