Windsor Mill MD ZIP Code
Windsor Mill 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 Windsor Mill MD zip code by its streets and block numbers if we have some of the Windsor Mill streets loaded in our website
Windsor Mill Area Code is 410 and Time Zone is Eastern (GMT -05:00).
Windsor Mill Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Windsor Mill City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Windsor Mill ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Windsor Mill, Maryland.
The Windsor Mill Zip Code is 21244.
If you want to send a mail to Windsor Mill City, you should use the 21244 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Windsor Mill 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 21244 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Windsor Mill 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.