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Zip Code 21029 — Clarksville, MD

21029 is a ZIP Code associated with Clarksville, MD, located within Howard. The postal region supports an estimated population of 13,607 residents across Data Pending housing units, with a population density of 310.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.206330, -76.952060)

Data MetricLocal Statistic
Postal / Zip Code21029
Primary CityClarksville
State / ProvinceMD
CountyHoward
Total Population13,607
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density310.6 people/sq mi
TimezoneAmerica/New_York

How 21029 Compares

MetricZIP 21029Howard CountyMD State Average
Population13,607335,5126,205,597
Median IncomeData PendingN/AN/A
Population Density310.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 20777Highland2.3 mi3,221N/A
Zip 21036Dayton3.3 mi2,569N/A
Zip 21044Columbia3.7 mi44,114N/A
Zip 20759Fulton3.8 mi6,624N/A
Zip 20862Brinklow4.0 mi430N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →