Williamsport MD ZIP Code


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


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

Williamsport Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).



Williamsport Zip Code - Maryland

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

The Williamsport Zip Code is 21795.



If you want to send a mail to Williamsport City, you should use the 21795 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Williamsport 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 21795 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Williamsport 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.


Williamsport, Maryland - MAP



What is the Williamsport Zip Code?

The Williamsport Zip Code in Maryland is 21795.


ZIP Plus 4 Williamsport - US Streets Zip Codes

By pressing keys ctrol + F you can search Williamsport zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Williamsport Zip Code

What is the zip code for Williamsport MD?

21795

Williamsport, Maryland - US Zip Code



Williamsport ZIP Code Lookup

21795 Zip Code File:
Zip Code: 21795,
City: Williamsport
Williamsport Area Code: 301/240
Williamsport, MD - Time Zone: Eastern (GMT -05:00)
County: Washington
City Alias: Williamsport
State: Maryland
State Abb: MD



Maryland Zip+4 - Nearby Williamsport Cities

Cities near Williamsport in Maryland
(straight line)


View more Maryland zip codes