Delmar, MD 21875 ZIP Code Profile

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Delmar, MD

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ZIP Code 21875: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Delmar, MD 21875

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 93
  • Single Family Addresses: 2,743
  • Multi-Family Addresses: 98
  • County: Wicomico County
  • Centroid: Latitude 38.449, Longitude -75.581
  • 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.


21875 ZIP Code Map

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Delmar, MD 21875 Data & Demographics (As of July 1, 2017)


Total Population 7,171
Daytime Population: Workers 1,415
Daytime Population: Residents 3,385
Total Daytime Population (TDP) 4,800
Ratio TDP/Total Population1 0.67
Population in Households 6,775
Population in Familes 5,491
Population in Group Qrtrs 396
Population Density2 303
Diversity Index3 51


Median Household Income $52,009
Average Household Income $68,001
Per Capita Income $28,021


Total Housing Units 3,058 (100%)
Owner Occupied HU 1,849 (60.5%)
Renter Occupied HU 893 (29.2%)
Vacant Housing Units 316 (10.3%)
Median Home Value $180,588
Average Home Value $197,729


Total Households 2,742
Average Household Size 2.47
Family Households 1,900
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 0.94% 1.16%
Households 0.81% 1.1%
Families 0.71% 1.05%
Median Household Income   1.41%
Per Capita Income   2.52%

Delmar, MD 21875 - Peer Comparisons by Rank and Percentile

The table below compares 21875 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 # 208 55th
Population Density # 250 45th
Diversity Index # 141 69th
Median Household Income # 382 16th
Per Capita Income # 345 25th

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

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