Frostburg MD ZIP Code
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Frostburg city is located in Maryland State, Allegany County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Frostburg MD zip code by its streets and block numbers if we have some of the Frostburg streets loaded in our website
Frostburg Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).
Frostburg Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Frostburg City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Frostburg ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Frostburg, Maryland.
The Frostburg Zip Code is 21532.
If you want to send a mail to Frostburg City, you should use the 21532 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Frostburg 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 21532 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Frostburg 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.