There are 20 zip codes in Howard County, Maryland. The most populated is 21043, located in Ellicott City. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Zip Code
Population
City
2104347,309Ellicott City
2104445,100Columbia
2104242,528Ellicott City
2104540,980Columbia
2107536,176Elkridge
2072335,845Laurel
2079416,035Jessup
2104615,894Columbia
2102913,817Clarksville
217979,034Woodbine
207596,125Fulton
211046,077Marriottsville
217383,786Glenwood
207773,220Highland
217372,406Glenelg
217942,309West Friendship
207632,219Savage
210362,145Dayton
20701794Annapolis Junction
21723689Cooksville

Zip Codes in Howard County, Maryland by Population (2024)