About ZIP Code 21045
ZIP code 21045 is assigned to Columbia, Howard County, Maryland, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 40,034 with a density of 1,593.9 people per square mile.
Location Details
ZIP Code21045
CityColumbia
CountyHoward County
StateMaryland
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude39.2062
Longitude-76.8275
ZIP TypeStandard ZIP
Post Office
Address6801 OAK HALL LN
CityCOLUMBIA
StateMD
Nearby ZIP Codes in Maryland
Frequently Asked Questions
What city is ZIP code 21045 in?
ZIP code 21045 is in Columbia, Howard County, Maryland, United States.
What county is ZIP code 21045 in?
ZIP code 21045 is in Howard County, Maryland.
What timezone is ZIP code 21045 in?
ZIP code 21045 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 21045?
The estimated population of ZIP code 21045 is 40,034 people with a density of 1,593.9 people per square mile.
What state is ZIP code 21045 in?
ZIP code 21045 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.