Joppa MD ZIP Code
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Joppa city is located in Maryland State, Harford County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Joppa MD zip code by its streets and block numbers if we have some of the Joppa streets loaded in our website
Joppa Area Code is 443 and Time Zone is Eastern (GMT -05:00).
Joppa Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Joppa City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Joppa ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Joppa, Maryland.
The Joppa Zip Code is 21085.
If you want to send a mail to Joppa City, you should use the 21085 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Joppa 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 21085 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Joppa 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.