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Maryland ZIP Codes
Somerset County
Marion Station, MD
21838
21838 ZIP Code — Marion Station, MD
Somerset County, Maryland
ZIP code 21838 is located in
Marion Station ,
Maryland ,
within Somerset County .
It covers approximately 54.85 square miles and serves a population of
2,219 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 410/667 .
About ZIP code 21838
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 $175,200. Owner-occupancy is high at 95%, well above the national average.
Median household income is $85,929. The poverty rate of 3% is below the national average. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
Overall, ZIP code 21838 reflects a community defined by high homeownership and a significant Social Security-dependent population.
21838 ZIP code map
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Cities in ZIP code 21838
Below are the cities the US Postal Service accepts for ZIP code 21838. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
2,219
Population density
40 / sq mi
State FIPS
24
County FIPS
039
Geography
Land area
54.85 sq mi
Water area
6.74 sq mi
Latitude
38.0236
Longitude
-75.7259
Timezone
Eastern (ET)
Area code
410/667
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.7%
52.7%
28.2%
$50k – $100k
40.8%
31.5%
28.2%
$100k – $200k
21.2%
14.6%
30.1%
Over $200k
4.2%
1.2%
13.4%
Demographics & statistics
$85,929
Median household income
$175,200
Median home value
$1,547
Median monthly rent
24.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 384 17.3%
18 and over 1,835 82.7%
65 and over 421 19.0%
Median age 46.9 years
Race & ethnicity
Black or African American
9.6%
Group Count %
White 1,847 79.6%
Black or African American 222 9.6%
Hispanic or Latino 100 4.3%
Two or more races 84 3.6%
Other race 66 2.8%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.7%
52.7%
28.2%
$50k – $100k
40.8%
31.5%
28.2%
$100k – $200k
21.2%
14.6%
30.1%
Over $200k
4.2%
1.2%
13.4%
Range % of households
$15k–$25k 5.9%
$25k–$35k 14.1%
$35k–$50k 7.9%
$50k–$75k 8.7%
$75k–$100k 30.0%
$100k–$150k 16.8%
$150k–$200k 2.3%
$200k+ 14.3%
Median income $85,929
Housing
Housing overview
Metric Value
Median home value $175,200
Median rent / month $1,547
Owner occupied 95.3%
Renter occupied 4.7%
Vacant 20.5%
Single-family detached 89.7%
Large apartment buildings 0.0%
Mobile homes 8.2%
Median rooms 7.4
Avg household size (owned) 2.72
Year built
Era %
2020 or later 1.1%
2010–2019 5.0%
2000–2009 16.8%
1990–1999 16.4%
1980–1989 9.1%
1970–1979 12.6%
1960–1969 6.5%
1950–1959 1.7%
1940–1949 7.6%
1939 or earlier 23.2%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 16.3%
3 bedrooms 50.2%
4 bedrooms 31.8%
5+ bedrooms 1.7%
Vehicles per household
Vehicles % of households
No vehicle 0.5%
1 vehicle 11.1%
2 vehicles 36.9%
3 or more 51.6%
Heating fuel
Fuel type %
Utility gas 0.7%
Electricity 54.6%
Propane / LP gas 13.8%
Fuel oil 14.8%
Wood 13.9%
Solar 1.0%
Households & families
Household type Count %
Married-couple family 565 67.9%
Cohabiting couple 82 9.9%
Male householder, no spouse 45 5.4%
Female householder, no spouse 140 16.8%
Households with children under 18 327 39.3%
Households with seniors (65+) 331 39.8%
Average household size 2.67
Marital status
Status Male Female
Never married 24.4% 26.9%
Married 61.2% 51.4%
Separated 0.0% 1.3%
Widowed 4.1% 8.9%
Divorced 10.3% 11.5%
Education
Some college, no degree
21.2%
Graduate / professional
6.4%
Metric %
HS diploma or higher 90.8%
Bachelor's or higher 24.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 11 3.5%
Elementary school 94 29.7%
High school 186 58.7%
College / grad school 26 8.2%
Employment
Industry of employment
Education & healthcare
28.4%
Agriculture & mining
7.4%
Public administration
6.5%
Finance & real estate
5.5%
Professional & management
5.2%
Arts, food & hospitality
3.3%
Transportation & utilities
2.9%
Occupation
Category %
Management, business & arts 34.2%
Service 18.5%
Sales & office 24.9%
Natural resources & construction 14.6%
Production & transportation 7.8%
Employment type
Type %
Private sector 64.8%
Government 19.6%
Self-employed 15.7%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 85.5%
Carpool 9.0%
Public transit 0.0%
Walk 0.0%
Work from home 5.5%
Other means 0.0%
Avg commute (minutes) 23.5
Poverty
Married-couple families
0.0%
Female-led households
48.3%
Income support
Source % of households
Social Security 42.3%
Retirement income 28.8%
Supplemental Security 2.4%
Cash public assistance 2.3%
Food stamps / SNAP 10.5%
Health indicators
Condition %
Obesity 36.8%
High blood pressure 44.0%
High cholesterol 39.8%
Diabetes 14.1%
Heart disease 8.2%
Stroke 4.3%
Asthma 10.7%
Arthritis 32.2%
Kidney disease 3.7%
Pulmonary disease 8.8%
Cancer 7.7%
Behavior / access %
Smoking 19.7%
Binge drinking 13.3%
No physical activity 29.9%
Less than 7 hrs sleep 34.1%
Depression 20.0%
Fair or poor health 17.6%
Poor mental health 14.7%
Poor physical health 11.7%
No health insurance 13.2%
Visited doctor (checkup) 79.2%
Visited dentist 55.3%
Cholesterol screening 92.0%
Teeth loss 16.2%
Veterans & disability
Veterans Count %
Civilian veterans 84 4.6%
Disability %
Any disability 12.0%
Under 18 1.8%
18–64 years 11.5%
65 and over 23.0%
Health insurance coverage
Type %
Private insurance 62.5%
Public insurance 48.6%
No insurance 2.5%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,129 95.9%
Spanish 28 1.3%
Other Indo-European 28 1.3%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,191 98.7%
Born in same state 2,191 98.7%
Born in different state 1,469 66.2%
Foreign born 0 0.0%
Naturalized citizen 28 1.3%
Not a US citizen 13 46.4%
Ancestry
Ancestry Count %
Arab 1,099 49.5%
French 292 13.2%
Italian 156 7%
Ancestry Count %
Irish 8 0.4%
English 8 0.4%
Technology access
Metric % of households
Computer access 37.5%
Internet access 94.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21838
What city is ZIP code 21838 in?
ZIP code 21838 is primarily assigned to Marion Station, Maryland.
What county is ZIP code 21838 in?
ZIP code 21838 falls within Somerset County, Maryland.
Is ZIP code 21838 mostly owner-occupied?
95% of occupied units in ZIP code 21838 are owner-occupied, well above the national average.
Does ZIP code 21838 have a large retiree population?
42% of households in ZIP code 21838 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 21838?
The median home value in ZIP code 21838 is $175,200.
What is the population of ZIP code 21838?
ZIP code 21838 has an estimated population of 2,219 residents, with a density of 40 people per square mile.
What timezone is ZIP code 21838 in?
ZIP code 21838 observes the EST timezone.
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