Greensboro MD ZIP Code

Greensboro city is located in Maryland State, Caroline County and has a unique zip code assigned by the US Postal Service Office.

You can search for the Greensboro MD zip code by its streets and block numbers if we have some of the Greensboro streets loaded in our website

Greensboro Area Code is 410 and Time Zone is Eastern (GMT -05:00).

Greensboro Zip Code - Maryland

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Greensboro City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Greensboro ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Greensboro, Maryland.

The Greensboro Zip Code is 21639.

If you want to send a mail to Greensboro City, you should use the 21639 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Greensboro 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 21639 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Greensboro 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.

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What is the Greensboro Zip Code?

The Greensboro Zip Code in Maryland is 21639.

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Greensboro, Maryland - US Zip Code

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21639 Zip Code File:
Zip Code: 21639,
City: Greensboro
Greensboro Area Code: 410
Greensboro, MD - Time Zone: Eastern (GMT -05:00)
County: Caroline
City Alias: Greensboro
State: Maryland
State Abb: MD

Maryland Zip+4 - Nearby Greensboro Cities

Cities near Greensboro in Maryland
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