Prince Frederick MD ZIP Code
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Prince Frederick city is located in Maryland State, Calvert County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Prince Frederick MD zip code by its streets and block numbers if we have some of the Prince Frederick streets loaded in our website
Prince Frederick Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Prince Frederick Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Prince Frederick City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Prince Frederick ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Prince Frederick, Maryland.
The Prince Frederick Zip Code is 20678.
If you want to send a mail to Prince Frederick City, you should use the 20678 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Prince Frederick 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 20678 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Prince Frederick 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.