Dayton MD ZIP Code
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Dayton 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 Dayton MD zip code by its streets and block numbers if we have some of the Dayton streets loaded in our website
Dayton Area Code is 240 and Time Zone is Eastern (GMT -05:00).
Dayton Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Dayton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Dayton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Dayton, Maryland.
The Dayton Zip Code is 21036.
If you want to send a mail to Dayton City, you should use the 21036 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Dayton 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 21036 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Dayton 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.