Home > MD > Carroll County > Sykesville > Zip 21784

Zip Code 21784 — Sykesville, MD

21784 is a ZIP Code associated with Sykesville, MD, located within Carroll. The postal region supports an estimated population of 39,258 residents across Data Pending housing units, with a population density of 270.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.400870, -76.972600)

Data MetricLocal Statistic
Postal / Zip Code21784
Primary CitySykesville
State / ProvinceMD
CountyCarroll
Total Population39,258
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density270.0 people/sq mi
TimezoneAmerica/New_York

How 21784 Compares

MetricZIP 21784Carroll CountyMD State Average
Population39,258158,3226,205,597
Median IncomeData PendingN/AN/A
Population Density270.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 21104Marriottsville5.0 mi6,052N/A
Zip 21723Cooksville5.4 mi669N/A
Zip 21797Woodbine7.0 mi8,643N/A
Zip 21794West Friendship7.2 mi2,192N/A
Zip 21048Finksburg7.3 mi10,481N/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 →