21540 ZIP Code — Luke, MD
Allegany County, Maryland
ZIP code 21540 is located in Luke, Maryland, within Allegany County. It covers approximately 0.27 square miles and serves a population of 94 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 240/301.
94
population
0.27
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
21540 ZIP code map
Cities in ZIP code 21540
Below are the cities the US Postal Service accepts for ZIP code 21540. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Luke | Acceptable |
| Luke | Preferred |
Nearby ZIP codes
26750 Piedmont (1.3 mi)
21562 Westernport (2.4 mi)
21523 Bloomington (3.2 mi)
26726 Keyser (5 mi)
21521 Barton (6.4 mi)
21561 Swanton (7.4 mi)
21557 Rawlings (7.8 mi)
26743 New Creek (8.9 mi)
21539 Lonaconing (8.9 mi)
26717 Elk Garden (9.8 mi)
21538 Kitzmiller (10 mi)
26710 Burlington (11 mi)
Demographics
updated 07/2026
| Population | |
|---|---|
| Total population | 94 |
| Population density | 348 / sq mi |
| State FIPS | 24 |
| County FIPS | 001 |
| Geography | |
|---|---|
| Land area | 0.27 sq mi |
| Water area | 0.04 sq mi |
| Latitude | 39.4763 |
| Longitude | -79.0610 |
| Timezone | Eastern (ET) |
| Area code | 240/301 |
Total population by age
Gender
Race & ethnicity
Economics
updated 07/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 68.6% | 49.9% | 28.2% |
| $50k – $100k | 31.4% | 33.2% | 28.2% |
| $100k – $200k | 0.0% | 14.9% | 30.1% |
| Over $200k | 0.0% | 2.0% | 13.4% |
Demographics & statistics
94
Population
348
People per sq mi
33.3
Median age
$63,125
Median household income
$23,507
Per capita income
$42,000
Median home value
$688
Median monthly rent
71.0%
Home ownership
19.1%
Poverty rate
6.7%
Unemployment
43
Housing units
6.9%
Bachelor's or higher
Age distribution
Male
Female
1
Under 5
1
7
5–9
7
1
10–14
0
8
15–19
7
2
20–24
2
7
25–34
7
4
35–44
4
13
45–54
12
2
55–59
1
2
60–64
1
1
65–74
1
2
75–84
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 31 | 33.0% |
| 18 and over | 63 | 67.0% |
| 65 and over | 5 | 5.3% |
| Median age | 33.3 years | |
Race & ethnicity
White
96.8%
Black or African American
1.1%
Hispanic or Latino
1.1%
Two or more races
1.1%
| Group | Count | % |
|---|---|---|
| White | 92 | 96.8% |
| Black or African American | 1 | 1.1% |
| Hispanic or Latino | 1 | 1.1% |
| Two or more races | 1 | 1.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 68.6% | 49.9% | 28.2% |
| $50k – $100k | 31.4% | 33.2% | 28.2% |
| $100k – $200k | 0.0% | 14.9% | 30.1% |
| Over $200k | 0.0% | 2.0% | 13.4% |
$10k–$15k
3.2%
$15k–$25k
22.6%
$35k–$50k
12.9%
$50k–$75k
22.6%
$75k–$100k
6.5%
$100k–$150k
29.0%
$150k–$200k
3.2%
| Range | % of households |
|---|---|
| $10k–$15k | 3.2% |
| $15k–$25k | 22.6% |
| $35k–$50k | 12.9% |
| $50k–$75k | 22.6% |
| $75k–$100k | 6.5% |
| $100k–$150k | 29.0% |
| $150k–$200k | 3.2% |
| Median income | $63,125 |
Housing
Home values
Under $50k
86.4%
$50k–$100k
9.1%
$100k–$150k
4.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $42,000 |
| Median rent / month | $688 |
| Owner occupied | 71.0% |
| Renter occupied | 29.0% |
| Vacant | 40.4% |
| Single-family detached | 50.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.86 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 0.0% |
| 1960–1969 | 7.7% |
| 1950–1959 | 0.0% |
| 1940–1949 | 9.6% |
| 1939 or earlier | 82.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 23.1% |
| 3 bedrooms | 76.9% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 12.9% |
| 1 vehicle | 45.2% |
| 2 vehicles | 25.8% |
| 3 or more | 16.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 100.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 17 | 54.8% |
| Cohabiting couple | 6 | 19.4% |
| Male householder, no spouse | 3 | 9.7% |
| Female householder, no spouse | 5 | 16.1% |
| Households with children under 18 | 18 | 58.1% |
| Households with seniors (65+) | 4 | 12.9% |
| Average household size | 2.90 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 59.1% | 36.4% |
| Married | 40.9% | 48.5% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 0.0% |
| Divorced | 0.0% | 15.2% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
63.8%
Some college, no degree
29.3%
Associate's degree
0.0%
Bachelor's degree
3.4%
Graduate / professional
3.4%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 6.9% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 3 | 10.0% |
| Elementary school | 12 | 40.0% |
| High school | 15 | 50.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Finance & real estate
23.8%
Professional & management
23.8%
Retail trade
16.7%
Manufacturing
11.9%
Construction
9.5%
Transportation & utilities
4.8%
Public administration
4.8%
Arts, food & hospitality
2.4%
Other services
2.4%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 50.0% |
| Service | 7.1% |
| Sales & office | 9.5% |
| Natural resources & construction | 9.5% |
| Production & transportation | 23.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 85.7% |
| Government | 4.8% |
| Self-employed | 9.5% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 92.1% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 7.9% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 23.8 |
Poverty
All people
19.1%
Under 18 years
29.0%
18 and over
14.3%
Married-couple families
0.0%
Female-led households
75.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 19.4% |
| Retirement income | 16.1% |
| Supplemental Security | 6.5% |
| Cash public assistance | 6.5% |
| Food stamps / SNAP | 22.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 33.7% |
| High blood pressure | 45.0% |
| High cholesterol | 36.0% |
| Diabetes | 14.7% |
| Heart disease | 10.5% |
| Stroke | 4.8% |
| Asthma | 9.9% |
| Arthritis | 35.3% |
| Kidney disease | 4.3% |
| Pulmonary disease | 10.1% |
| Cancer | 9.5% |
| Behavior / access | % |
|---|---|
| Smoking | 18.6% |
| Binge drinking | 13.0% |
| No physical activity | 30.1% |
| Less than 7 hrs sleep | 32.0% |
| Depression | 22.0% |
| Fair or poor health | 19.2% |
| Poor mental health | 14.3% |
| Poor physical health | 12.3% |
| No health insurance | 12.6% |
| Visited doctor (checkup) | 78.9% |
| Visited dentist | 56.9% |
| Cholesterol screening | 90.8% |
| Teeth loss | 16.1% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 10 | 15.9% |
| Disability | % |
|---|---|
| Any disability | 18.1% |
| Under 18 | 22.6% |
| 18–64 years | 10.3% |
| 65 and over | 80.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 23.4% |
| Public insurance | 85.1% |
| No insurance | 1.1% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 92 | 97.9% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 94 | 100.0% |
| Born in same state | 94 | 100.0% |
| Born in different state | 63 | 67.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 14 | 14.9% |
| Italian | 3 | 3.2% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 1 | 1.1% |
| French | 1 | 1.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 33.0% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21540
What city is ZIP code 21540 in?
ZIP code 21540 is primarily assigned to Luke, Maryland.
What county is ZIP code 21540 in?
ZIP code 21540 falls within Allegany County, Maryland.
Is ZIP code 21540 family-oriented?
33% of residents in ZIP code 21540 are under 18, reflecting a younger, family-oriented community.
How educated is the population of ZIP code 21540?
7% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 21540?
19% of residents in ZIP code 21540 live below the poverty line, above the national average.
Does ZIP code 21540 have a large veteran population?
16% of civilians in ZIP code 21540 are veterans, above the national average of ~7%.
What timezone is ZIP code 21540 in?
ZIP code 21540 observes the EST timezone.