About ZIP Code 21738
ZIP code 21738 is assigned to Glenwood, Howard County, Maryland, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 3,696 with a density of 204.5 people per square mile.
Location Details
ZIP Code21738
CityGlenwood
CountyHoward County
StateMaryland
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude39.2797
Longitude-77.0255
ZIP TypeStandard ZIP
Post Office
Address3000 ROUTE 97
CityGLENWOOD
StateMD
Nearby ZIP Codes in Maryland
Frequently Asked Questions
What city is ZIP code 21738 in?
ZIP code 21738 is in Glenwood, Howard County, Maryland, United States.
What county is ZIP code 21738 in?
ZIP code 21738 is in Howard County, Maryland.
What timezone is ZIP code 21738 in?
ZIP code 21738 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 21738?
The estimated population of ZIP code 21738 is 3,696 people with a density of 204.5 people per square mile.
What state is ZIP code 21738 in?
ZIP code 21738 is in Maryland (MD), United States.
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Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.