Fallston MD ZIP Code
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Fallston 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 Fallston MD zip code by its streets and block numbers if we have some of the Fallston streets loaded in our website
Fallston Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Fallston Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Fallston City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Fallston ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Fallston, Maryland.
The Fallston Zip Code is 21047.
If you want to send a mail to Fallston City, you should use the 21047 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Fallston 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 21047 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Fallston 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.