Highland MD ZIP Code
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Highland 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 Highland MD zip code by its streets and block numbers if we have some of the Highland streets loaded in our website
Highland Area Code is 240 and Time Zone is Eastern (GMT -05:00).
Highland Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Highland City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Highland ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Highland, Maryland.
The Highland Zip Code is 20777.
If you want to send a mail to Highland City, you should use the 20777 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Highland 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 20777 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Highland 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.