Mc Henry MD ZIP Code
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Mc Henry city is located in Maryland State, Garrett County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mc Henry MD zip code by its streets and block numbers if we have some of the Mc Henry streets loaded in our website
Mc Henry Area Code is 301 and Time Zone is Eastern (GMT -05:00).
Mc Henry Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mc Henry City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mc Henry ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mc Henry, Maryland.
The Mc Henry Zip Code is 21541.
If you want to send a mail to Mc Henry City, you should use the 21541 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mc Henry 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 21541 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mc Henry 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.