Henderson, MD 21640 ZIP Code Profile

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Henderson, MD

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ZIP Code 21640: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Henderson, MD 21640

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 12
  • Single Family Addresses: 563
  • Multi-Family Addresses: 0
  • County: Caroline County
  • Centroid: Latitude 39.069, Longitude -75.815
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 21640 has segments in 2 Counties / Independent Cities (Caroline, Queen Annes).

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.


21640 ZIP Code Map

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Henderson, MD 21640 Data & Demographics (As of July 1, 2016)


Total Population 1,655
Population in Households 1,655
Population in Familes 1,339
Population in Group Qrtrs 0
Population Density1 55
Diversity Index2 59


Total Households 598
Average Household Size 2.77
Family Households 433
Average Family Size 3


Total Housing Units 657 (100%)
Owner Occupied HU 448 (68.2%)
Renter Occupied HU 150 (22.8%)
Vacant Housing Units 59 ( 9.0%)
Median Home Value $225,000
Average Home Value $238,783


Median Household Income $50,470
Average Household Income $62,585
Per Capita Income $22,614
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.13% 0.11%
Households -0.08% -0.03%
Families -0.15% -0.09%
Median Household Income   1.06%
Per Capita Income   1.42%
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.

Henderson, MD 21640 - Peer Comparisons by Rank and Percentile

The table below compares 21640 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 # 324 29th
Population Density1 # 401 12th
Diversity Index2 # 100 78th
Median Household Income # 385 16th
Per Capita Income # 406 11th

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