Chewsville MD ZIP Code
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Chewsville city is located in Maryland State, Washington County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Chewsville MD zip code by its streets and block numbers if we have some of the Chewsville streets loaded in our website
Chewsville Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).
Chewsville Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Chewsville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Chewsville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Chewsville, Maryland.
The Chewsville Zip Code is 21721.
If you want to send a mail to Chewsville City, you should use the 21721 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Chewsville 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 21721 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Chewsville 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.