Aberdeen, MD 21001 ZIP Code Profile

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Aberdeen, MD

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ZIP Code 21001: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Aberdeen, MD 21001

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 710
  • Single Family Addresses: 8,067
  • Multi-Family Addresses: 1,456
  • County: Harford County
  • Centroid: Latitude 39.509, Longitude -76.182
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


21001 ZIP Code Map

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Aberdeen, MD 21001 Data & Demographics (As of July 1, 2015)


Total Population 23,517
Population in Households 23,428
Population in Familes 18,893
Population in Group Qrtrs 89
Population Density1 435
Diversity Index2 59


Total Households 9,193
Average Household Size 2.55
Family Households 6,202
Average Family Size 3


Total Housing Units 9,887 (100%)
Owner Occupied HU 5,903 (59.7%)
Renter Occupied HU 3,290 (33.3%)
Vacant Housing Units 694 ( 7.0%)
Median Home Value $230,188
Average Home Value $251,300


Median Household Income $54,362
Average Household Income $67,346
Per Capita Income $26,392
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.5% 1.17%
Households 1.57% 1.2%
Families 1.41% 1.09%
Median Household Income   3.09%
Per Capita Income   2.53%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Aberdeen, MD 21001 - Peer Comparisons by Rank and Percentile

The table below compares 21001 to the other 440 ZIP Codes in Maryland by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 107 76th
Population Density1 # 208 53rd
Diversity Index2 # 91 80th
Median Household Income # 350 21st
Per Capita Income # 345 22nd

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.