Sudlersville, MD 21668 ZIP Code Profile

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Sudlersville, MD

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ZIP Code 21668: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Sudlersville, MD 21668

  • ZIP Code Type: STANDARD
  • County: Queen Annes County
  • Centroid: Latitude 39.197, Longitude -75.856
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 47
  • PO Box Addresses: 98
  • Residential Addresses: 606
    • Multi-Family Addresses: 16
    • Single Family Addresses: 590

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 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.


21668 ZIP Code Map

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Sudlersville, MD 21668 Data & Demographics (As of July 1, 2017)


Total Population 1,847
Daytime Population: Workers 439
Daytime Population: Residents 874
Total Daytime Population (TDP) 1,313
Ratio TDP/Total Population1 0.71
Population in Households 1,815
Population in Familes 1,472
Population in Group Qrtrs 32
Population Density2 44
Diversity Index3 40


Median Household Income $67,796
Average Household Income $79,896
Per Capita Income $30,298


Total Housing Units 761 (100%)
Owner Occupied HU 499 (65.6%)
Renter Occupied HU 187 (24.6%)
Vacant Housing Units 75 ( 9.9%)
Median Home Value $241,250
Average Home Value $315,180


Total Households 686
Average Household Size 2.65
Family Households 476
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 1.13% 1.02%
Households 0.94% 0.94%
Families 0.81% 0.83%
Median Household Income   3.56%
Per Capita Income   3.08%

Sudlersville, MD 21668 - Peer Comparisons by Rank and Percentile

The table below compares 21668 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 # 318 30th
Population Density # 414 9th
Diversity Index # 222 52nd
Median Household Income # 270 41st
Per Capita Income # 305 33rd

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

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