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Maryland ZIP Codes
Allegany County
Lonaconing, MD
21539
21539 ZIP Code — Lonaconing, MD
Allegany County, Maryland
ZIP code 21539 is located in
Lonaconing ,
Maryland ,
within Allegany County .
It covers approximately 37.08 square miles and serves a population of
2,095 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 240/301 .
About ZIP code 21539
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $100,800. Owner-occupancy sits near the national average at 65%.
Median household income is $57,143. Poverty affects 18% of residents, above the national average. SNAP benefit usage at 24% of households reflects economic stress in the area. 45% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.
College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 21539 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.
21539 ZIP code map
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Cities in ZIP code 21539
Below are the cities the US Postal Service accepts for ZIP code 21539. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 07/2026
Population
Total population
2,095
Population density
56 / sq mi
State FIPS
24
County FIPS
001
Geography
Land area
37.08 sq mi
Water area
0.04 sq mi
Latitude
39.5989
Longitude
-79.0110
Timezone
Eastern (ET)
Area code
240/301
Economics
updated 07/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
56.2%
49.9%
28.2%
$50k – $100k
26.3%
33.2%
28.2%
$100k – $200k
16.5%
14.9%
30.1%
Over $200k
1.0%
2.0%
13.4%
Demographics & statistics
$57,143
Median household income
$100,800
Median home value
18.4%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 429 20.5%
18 and over 1,666 79.5%
65 and over 454 21.7%
Median age 42.5 years
Race & ethnicity
Black or African American
0.1%
Group Count %
White 2,008 93.9%
Hispanic or Latino 44 2.1%
Two or more races 40 1.9%
Asian 36 1.7%
Other race 8 0.4%
Black or African American 3 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
56.2%
49.9%
28.2%
$50k – $100k
26.3%
33.2%
28.2%
$100k – $200k
16.5%
14.9%
30.1%
Over $200k
1.0%
2.0%
13.4%
Range % of households
Under $10k 8.5%
$10k–$15k 6.1%
$15k–$25k 10.1%
$25k–$35k 8.5%
$35k–$50k 13.6%
$50k–$75k 13.3%
$75k–$100k 17.5%
$100k–$150k 14.4%
$150k–$200k 6.7%
$200k+ 1.3%
Median income $57,143
Housing
Housing overview
Metric Value
Median home value $100,800
Median rent / month $650
Owner occupied 65.2%
Renter occupied 34.8%
Vacant 24.3%
Single-family detached 70.3%
Large apartment buildings 3.5%
Mobile homes 3.0%
Median rooms 5.9
Avg household size (owned) 2.36
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 7.5%
1990–1999 6.0%
1980–1989 7.1%
1970–1979 14.5%
1960–1969 2.9%
1950–1959 12.2%
1940–1949 4.5%
1939 or earlier 45.4%
Bedrooms
Size % of units
No bedroom (studio) 1.0%
1 bedroom 16.4%
2 bedrooms 18.2%
3 bedrooms 48.6%
4 bedrooms 12.9%
5+ bedrooms 3.0%
Vehicles per household
Vehicles % of households
No vehicle 14.4%
1 vehicle 32.7%
2 vehicles 28.8%
3 or more 24.1%
Heating fuel
Fuel type %
Utility gas 34.0%
Electricity 25.6%
Propane / LP gas 2.7%
Fuel oil 16.1%
Wood 18.4%
Households & families
Household type Count %
Married-couple family 347 40.3%
Cohabiting couple 89 10.3%
Male householder, no spouse 167 19.4%
Female householder, no spouse 259 30.0%
Households with children under 18 208 24.1%
Households with seniors (65+) 293 34.0%
Average household size 2.37
Marital status
Status Male Female
Never married 36.8% 24.8%
Married 43.7% 44.2%
Separated 0.7% 1.9%
Widowed 10.8% 19.9%
Divorced 8.0% 9.3%
Education
Some college, no degree
17.5%
Graduate / professional
6.0%
Metric %
HS diploma or higher 91.4%
Bachelor's or higher 18.4%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 22 4.4%
Kindergarten 46 9.1%
Elementary school 206 41.0%
High school 107 21.3%
College / grad school 122 24.3%
Employment
Industry of employment
Education & healthcare
26.6%
Arts, food & hospitality
9.0%
Public administration
7.2%
Finance & real estate
3.7%
Agriculture & mining
3.4%
Transportation & utilities
2.8%
Professional & management
2.0%
Occupation
Category %
Management, business & arts 23.7%
Service 28.0%
Sales & office 19.4%
Natural resources & construction 11.6%
Production & transportation 17.3%
Employment type
Type %
Private sector 76.4%
Government 18.7%
Self-employed 4.9%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 80.9%
Carpool 12.6%
Public transit 0.0%
Walk 4.6%
Work from home 1.8%
Other means 0.0%
Avg commute (minutes) 21.9
Poverty
Married-couple families
5.8%
Female-led households
21.3%
Income support
Source % of households
Social Security 45.1%
Retirement income 38.6%
Supplemental Security 11.6%
Cash public assistance 10.8%
Food stamps / SNAP 23.8%
Health indicators
Condition %
Obesity 33.9%
High blood pressure 39.9%
High cholesterol 34.0%
Diabetes 11.8%
Heart disease 8.1%
Stroke 3.9%
Asthma 10.5%
Arthritis 32.0%
Kidney disease 3.5%
Pulmonary disease 9.1%
Cancer 8.1%
Behavior / access %
Smoking 19.6%
Binge drinking 14.2%
No physical activity 27.6%
Less than 7 hrs sleep 33.3%
Depression 23.4%
Fair or poor health 16.8%
Poor mental health 15.6%
Poor physical health 11.5%
No health insurance 11.3%
Visited doctor (checkup) 77.5%
Visited dentist 58.9%
Cholesterol screening 90.4%
Teeth loss 16.5%
Veterans & disability
Veterans Count %
Civilian veterans 140 8.4%
Disability %
Any disability 13.7%
Under 18 7.9%
18–64 years 13.4%
65 and over 21.0%
Health insurance coverage
Type %
Private insurance 64.1%
Public insurance 54.2%
No insurance 4.5%
Uninsured under 19 3.9%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,024 96.6%
Spanish 21 1.0%
Other Indo-European 2 0.1%
Asian & Pacific Islander 4 0.2%
Other languages 15 0.7%
Place of birth & citizenship
Origin Count %
Native born (US) 2,041 97.4%
Born in same state 2,026 96.7%
Born in different state 1,489 71.1%
Foreign born 15 0.7%
Naturalized citizen 54 2.6%
Not a US citizen 18 33.3%
Ancestry
Ancestry Count %
French 245 11.7%
Italian 232 11.1%
Ancestry Count %
Arab 50 2.4%
Polish 10 0.5%
Technology access
Metric % of households
Computer access 41.1%
Internet access 86.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21539
What city is ZIP code 21539 in?
ZIP code 21539 is primarily assigned to Lonaconing, Maryland.
What county is ZIP code 21539 in?
ZIP code 21539 falls within Allegany County, Maryland.
Does ZIP code 21539 have a large retiree population?
45% of households in ZIP code 21539 receive Social Security income, suggesting a significant retiree or disability population.
What is the poverty rate in ZIP code 21539?
18% of residents in ZIP code 21539 live below the poverty line, above the national average.
What is the typical home value in ZIP code 21539?
The median home value in ZIP code 21539 is $100,800.
What is the population of ZIP code 21539?
ZIP code 21539 has an estimated population of 2,095 residents, with a density of 57 people per square mile.
What timezone is ZIP code 21539 in?
ZIP code 21539 observes the EST timezone.
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