Mayo MD ZIP Code
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Mayo 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 Mayo MD zip code by its streets and block numbers if we have some of the Mayo streets loaded in our website
Mayo Area Code is 301/410 and Time Zone is Eastern (GMT -05:00).
Mayo Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mayo City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mayo ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mayo, Maryland.
The Mayo Zip Code is 21106.
If you want to send a mail to Mayo City, you should use the 21106 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mayo 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 21106 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mayo 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.