White Marsh MD ZIP Code
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White Marsh city is located in Maryland State, Baltimore County and has a unique zip code assigned by the US Postal Service Office.
You can search for the White Marsh MD zip code by its streets and block numbers if we have some of the White Marsh streets loaded in our website
White Marsh Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
White Marsh Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the White Marsh City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the White Marsh ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in White Marsh, Maryland.
The White Marsh Zip Code is 21162.
If you want to send a mail to White Marsh City, you should use the 21162 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded White Marsh 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 21162 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a White Marsh 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.