Keedysville MD ZIP Code
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Keedysville 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 Keedysville MD zip code by its streets and block numbers if we have some of the Keedysville streets loaded in our website
Keedysville Area Code is 301 and Time Zone is Eastern (GMT -05:00).
Keedysville Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Keedysville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Keedysville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Keedysville, Maryland.
The Keedysville Zip Code is 21756.
If you want to send a mail to Keedysville City, you should use the 21756 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Keedysville 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 21756 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Keedysville 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.