Washington Grove MD ZIP Code
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Washington Grove city is located in Maryland State, Montgomery County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Washington Grove MD zip code by its streets and block numbers if we have some of the Washington Grove streets loaded in our website
Washington Grove Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).
Washington Grove Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Washington Grove City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Washington Grove ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Washington Grove, Maryland.
The Washington Grove Zip Code is 20880.
If you want to send a mail to Washington Grove City, you should use the 20880 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Washington Grove 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 20880 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Washington Grove 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.