Home > MD > Harford County > Aberdeen > Zip 21001

Zip Code 21001 — Aberdeen, MD

21001 is a ZIP Code associated with Aberdeen, MD, located within Harford. The postal region supports an estimated population of 27,168 residents across Data Pending housing units, with a population density of 350.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.510770, -76.202740)

Data MetricLocal Statistic
Postal / Zip Code21001
Primary CityAberdeen
State / ProvinceMD
CountyHarford
Total Population27,168
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density350.1 people/sq mi
TimezoneAmerica/New_York

How 21001 Compares

MetricZIP 21001Harford CountyMD State Average
Population27,168262,7686,205,597
Median IncomeData PendingN/AN/A
Population Density350.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 21130Perryman2.6 mi112N/A
Zip 21017Belcamp3.1 mi6,648N/A
Zip 21028Churchville4.5 mi3,103N/A
Zip 21078Havre De Grace5.0 mi20,030N/A
Zip 21005Aberdeen Proving Ground5.2 mi2,202N/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 →