Glen Arm MD ZIP Code

Glen Arm 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 Glen Arm MD zip code by its streets and block numbers if we have some of the Glen Arm streets loaded in our website

Glen Arm Area Code is 410/443 and Time Zone is Eastern (GMT -05:00).

Glen Arm Zip Code - Maryland

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

The Glen Arm Zip Code is 21057.

If you want to send a mail to Glen Arm City, you should use the 21057 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Glen Arm 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 21057 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Glen Arm 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.

Glen Arm, Maryland - MAP

What is the Glen Arm Zip Code?

The Glen Arm Zip Code in Maryland is 21057.

ZIP Plus 4 Glen Arm - US Streets Zip Codes

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What is the zip code for Glen Arm MD?


Glen Arm, Maryland - US Zip Code

Glen Arm ZIP Code Lookup

21057 Zip Code File:
Zip Code: 21057,
City: Glen Arm
Glen Arm Area Code: 410/443
Glen Arm, MD - Time Zone: Eastern (GMT -05:00)
County: Baltimore
City Alias: Glen Arm
State: Maryland
State Abb: MD

Maryland Zip+4 - Nearby Glen Arm Cities

Cities near Glen Arm in Maryland
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