Luke, MD 21540 ZIP Code Profile

Related Place Profiles:
Luke, MD | Westernport, MD

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ZIP Code 21540: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Luke, MD 21540

Acceptable Alternative
Westernport, MD 21540

  • ZIP Code Type: STANDARD
  • County: Allegany County
  • Centroid: Latitude 39.479, Longitude -79.056
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 5
  • PO Box Addresses: 0
  • Residential Addresses: 42
    • Multi-Family Addresses: 0
    • Single Family Addresses: 42

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

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21540 ZIP Code Map

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Luke, MD 21540 Data & Demographics (As of July 1, 2017)


Total Population 63
Daytime Population: Workers 956
Daytime Population: Residents 41
Total Daytime Population (TDP) 997
Ratio TDP/Total Population1 15.83
Population in Households 57
Population in Familes 43
Population in Group Qrtrs 6
Population Density2 242
Diversity Index3 9


Median Household Income $37,242
Average Household Income $48,016
Per Capita Income $27,662


Total Housing Units 61 (100%)
Owner Occupied HU 19 (31.1%)
Renter Occupied HU 13 (21.3%)
Vacant Housing Units 29 (47.5%)
Median Home Value $78,846
Average Home Value $85,526


Total Households 32
Average Household Size 1.78
Family Households 18
Average Family Size 2
  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 -0.43% -0.64%
Households -0.42% -0.63%
Families -0.74% 0.0%
Median Household Income   1.22%
Per Capita Income   2.34%

Luke, MD 21540 - Peer Comparisons by Rank and Percentile

The table below compares 21540 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 # 443 3rd
Population Density # 280 39th
Diversity Index # 429 6th
Median Household Income # 439 4th
Per Capita Income # 353 23rd

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

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