Aberdeen MD ZIP Code
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Aberdeen city is located in Maryland State, Harford County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Aberdeen MD zip code by its streets and block numbers if we have some of the Aberdeen streets loaded in our website
Aberdeen Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Aberdeen Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Aberdeen City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Aberdeen ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Aberdeen, Maryland.
The Aberdeen Zip Code is 21001.
If you want to send a mail to Aberdeen City, you should use the 21001 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Aberdeen 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 21001 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Aberdeen 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.