Rosedale MD ZIP Code
Rosedale 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 Rosedale MD zip code by its streets and block numbers if we have some of the Rosedale streets loaded in our website
Rosedale Area Code is 410/443 and Time Zone is Eastern (GMT -05:00).
Rosedale Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rosedale City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rosedale ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rosedale, Maryland.
The Rosedale Zip Code is 21237.
If you want to send a mail to Rosedale City, you should use the 21237 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rosedale 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 21237 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rosedale 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.