Cabin John MD ZIP Code
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Cabin John city is located in Maryland State, Montgomery County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Cabin John MD zip code by its streets and block numbers if we have some of the Cabin John streets loaded in our website
Cabin John Area Code is 240/301 and Time Zone is Eastern (GMT -05:00).
Cabin John Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Cabin John City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Cabin John ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Cabin John, Maryland.
The Cabin John Zip Code is 20818.
If you want to send a mail to Cabin John City, you should use the 20818 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Cabin John 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 20818 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Cabin John 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.