Whiteford MD ZIP Code
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Whiteford 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 Whiteford MD zip code by its streets and block numbers if we have some of the Whiteford streets loaded in our website
Whiteford Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Whiteford Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Whiteford City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Whiteford ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Whiteford, Maryland.
The Whiteford Zip Code is 21160.
If you want to send a mail to Whiteford City, you should use the 21160 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Whiteford 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 21160 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Whiteford 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.