21738 ZIP Code

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21738 is a zip code assigned by the US Postal Service Office for a US City.

You can search for the 21738 zip code by its streets and block numbers if we have some of the streets loaded in our website

You should use 21738 Zip Code if you want to send mail to a certain US City.

21738 Zip Code - US ZIP Codes

The US ZIP Code basic format consists of five decimal numerical digits assigned like the 21738 Zip Code. An extended ZIP+4 code, introduced in the 1980s, includes the five digits 21738 ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code.

21738 Zip Code belongs to Glenwood, MD - US. 21738 Zip code is located at Howard County and is related to this cities: Glenwood

21738 Zip Code Area Code is 443/410 and 21738 Zip Code Time Zone is Eastern (GMT -05:00).

In 1983, the U.S. Postal Service introduced an expanded Glenwood 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 21738 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Glenwood 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.

21738 Zip Code MAP

What city is 21738 Zip Code?

The 21738 Zip Code is assigned to Glenwood City in Maryland State.

ZIP Plus 4 Glenwood - US Streets Zip Codes

Please check the Glenwood page

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21738 Zip Code City?

Glenwood, MD

Glenwood (Howard County), Maryland - US

This Zip code is related to Glenwood City

21738 ZIP Code Lookup

21738 Zip Code File:
Zip Code: 21738
City: Glenwood
Glenwood Area Code: 443/410
Glenwood, MD - Time Zone: Eastern (GMT -05:00)
County: Howard
City Aliases: Glenwood
State: Maryland
State Abb: MD