Mardela Springs, MD 21837 ZIP Code Profile

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Mardela Springs, MD

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ZIP Code 21837: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Mardela Springs, MD 21837

Acceptable Alternative
Mardela, MD 21837
Mardela Spgs, MD 21837

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 50
  • Single Family Addresses: 945
  • Multi-Family Addresses: 0
  • County: Wicomico County
  • Centroid: Latitude 38.456, Longitude -75.756
  • 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.


21837 ZIP Code Map

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Mardela Springs, MD 21837 Data & Demographics (As of July 1, 2016)


Total Population 2,937
Population in Households 2,930
Population in Familes 2,497
Population in Group Qrtrs 7
Population Density1 64
Diversity Index2 46


Total Households 1,073
Average Household Size 2.73
Family Households 806
Average Family Size 3


Total Housing Units 1,220 (100%)
Owner Occupied HU 865 (70.9%)
Renter Occupied HU 208 (17.0%)
Vacant Housing Units 147 (12.0%)
Median Home Value $174,679
Average Home Value $218,873


Median Household Income $60,940
Average Household Income $78,111
Per Capita Income $28,621
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.64% 0.57%
Households 0.42% 0.44%
Families 0.32% 0.39%
Median Household Income   2.35%
Per Capita Income   1.79%
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.

Mardela Springs, MD 21837 - Peer Comparisons by Rank and Percentile

The table below compares 21837 to the other 455 ZIP Codes in Maryland by rank and percentile using July 1, 2016 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 # 279 39th
Population Density1 # 393 14th
Diversity Index2 # 171 62nd
Median Household Income # 302 34th
Per Capita Income # 311 32nd

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