Elkridge MD ZIP Code
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Elkridge city is located in Maryland State, Howard County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Elkridge MD zip code by its streets and block numbers if we have some of the Elkridge streets loaded in our website
Elkridge Area Code is 410/443 and Time Zone is Eastern (GMT -05:00).
Elkridge Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Elkridge City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Elkridge ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Elkridge, Maryland.
The Elkridge Zip Code is 21075.
If you want to send a mail to Elkridge City, you should use the 21075 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Elkridge 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 21075 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Elkridge 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.