Maryland Line MD ZIP Code
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Maryland Line 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 Maryland Line MD zip code by its streets and block numbers if we have some of the Maryland Line streets loaded in our website
Maryland Line Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Maryland Line Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Maryland Line City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Maryland Line ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Maryland Line, Maryland.
The Maryland Line Zip Code is 21105.
If you want to send a mail to Maryland Line City, you should use the 21105 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Maryland Line 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 21105 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Maryland Line 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.