Elkton, MD 21921 ZIP Code Profile

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Elkton, MD

ZIP Code 21921: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Elkton, MD 21921

  • ZIP Code Type: STANDARD
  • County: Cecil County
  • Centroid: Latitude 39.626, Longitude -75.85
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 902
  • PO Box Addresses: 0
  • Residential Addresses: 17,043
    • Multi-Family Addresses: 232
    • Single Family Addresses: 16,811

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic 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 demographic data.


21921 ZIP Code Map

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Elkton, MD 21921 Data & Demographics (As of July 1, 2017)


Total Population 45,943
Daytime Population: Workers 18,604
Daytime Population: Residents 23,576
Total Daytime Population (TDP) 42,180
Ratio TDP/Total Population1 0.92
Population in Households 45,254
Population in Familes 37,305
Population in Group Qrtrs 689
Population Density2 503
Diversity Index3 40


Median Household Income $65,857
Average Household Income $81,621
Per Capita Income $29,903


Total Housing Units 17,931 (100%)
Owner Occupied HU 10,923 (60.9%)
Renter Occupied HU 5,601 (31.2%)
Vacant Housing Units 1,407 ( 7.8%)
Median Home Value $256,829
Average Home Value $292,497


Total Households 16,524
Average Household Size 2.74
Family Households 11,613
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.59% 0.58%
Households 0.52% 0.53%
Families 0.4% 0.42%
Median Household Income   1.85%
Per Capita Income   2.47%

Elkton, MD 21921 - Peer Comparisons by Rank and Percentile

The table below compares 21921 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 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 # 26 95th
Population Density # 204 55th
Diversity Index # 220 52nd
Median Household Income # 275 40th
Per Capita Income # 312 32nd

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

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