Monkton MD ZIP Code
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Monkton city is located in Maryland State, Baltimore County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Monkton MD zip code by its streets and block numbers if we have some of the Monkton streets loaded in our website
Monkton Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Monkton Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Monkton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Monkton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Monkton, Maryland.
The Monkton Zip Code is 21111.
If you want to send a mail to Monkton City, you should use the 21111 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Monkton 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 21111 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Monkton 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.