Parkton MD ZIP Code
Parkton 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 Parkton MD zip code by its streets and block numbers if we have some of the Parkton streets loaded in our website
Parkton Area Code is 443/410 and Time Zone is Eastern (GMT -05:00).
Parkton Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Parkton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Parkton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Parkton, Maryland.
The Parkton Zip Code is 21120.
If you want to send a mail to Parkton City, you should use the 21120 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Parkton 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 21120 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Parkton 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.