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Maryland ZIP Codes
Montgomery County
Barnesville, MD
20838
20838 ZIP Code — Barnesville, MD
Montgomery County, Maryland
ZIP code 20838 is located in
Barnesville ,
Maryland ,
within Montgomery County .
It covers approximately 0.94 square miles and serves a population of
368 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 240/301 .
About ZIP code 20838
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 $760,400.
The gap between median ($195,938) and mean household income suggests income inequality — a small number of higher earners pull the average up. 41% 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. An above-average commute of 41 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 48% of workers work from home.
Educational attainment is high — 58% of residents hold a bachelor's degree or higher, well above the national average of 33%.
Overall, ZIP code 20838 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.
20838 ZIP code map
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Cities in ZIP code 20838
Below are the cities the US Postal Service accepts for ZIP code 20838. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
368
Population density
391 / sq mi
State FIPS
24
County FIPS
031
Geography
Land area
0.94 sq mi
Water area
0.01 sq mi
Latitude
39.2335
Longitude
-77.3510
Timezone
Eastern (ET)
Area code
240/301
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
12.0%
20.6%
28.2%
$50k – $100k
17.0%
24.2%
28.2%
$100k – $200k
41.0%
31.9%
30.1%
Over $200k
30.0%
23.3%
13.4%
Demographics & statistics
$195,938
Median household income
$760,400
Median home value
57.5%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 127 34.5% 18 and over 241 65.5% 65 and over 57 15.5% Median age 34.7 years
Race & ethnicity
Group Count % White 338 85.1% Hispanic or Latino 29 7.3% Other race 15 3.8% Two or more races 14 3.5% Asian 1 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
12.0%
20.6%
28.2%
$50k – $100k
17.0%
24.2%
28.2%
$100k – $200k
41.0%
31.9%
30.1%
Over $200k
30.0%
23.3%
13.4%
Range % of households $25k–$35k 1.0% $35k–$50k 5.2% $50k–$75k 8.2% $75k–$100k 10.3% $100k–$150k 7.2% $150k–$200k 20.6% $200k+ 47.4% Median income $195,938
Housing
Housing overview
Metric Value Median home value $760,400 Median rent / month $0 Owner occupied 99.0% Renter occupied 1.0% Vacant 3.0% Single-family detached 100.0% Large apartment buildings 0.0% Mobile homes 0.0% Median rooms 10.0 Avg household size (owned) 3.82
Year built
Era % 2020 or later 0.0% 2010–2019 0.0% 2000–2009 0.0% 1990–1999 13.0% 1980–1989 33.0% 1970–1979 7.0% 1960–1969 5.0% 1950–1959 1.0% 1940–1949 2.0% 1939 or earlier 39.0%
Bedrooms
Size % of units No bedroom (studio) 2.0% 1 bedroom 0.0% 2 bedrooms 4.0% 3 bedrooms 22.0% 4 bedrooms 48.0% 5+ bedrooms 24.0%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 12.4% 2 vehicles 40.2% 3 or more 47.4%
Heating fuel
Fuel type % Utility gas 1.0% Electricity 47.4% Propane / LP gas 3.1% Fuel oil 47.4%
Households & families
Household type Count % Married-couple family 75 77.3% Cohabiting couple 0 0.0% Male householder, no spouse 11 11.3% Female householder, no spouse 11 11.3% Households with children under 18 44 45.4% Households with seniors (65+) 46 47.4% Average household size 3.79
Marital status
Status Male Female Never married 35.3% 18.2% Married 61.0% 61.5% Separated 0.0% 1.4% Widowed 2.2% 14.7% Divorced 1.5% 4.2%
Education
Some college, no degree
11.2%
Graduate / professional
28.0%
Metric % HS diploma or higher 100.0% Bachelor's or higher 57.5%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 8 6.3% Kindergarten 16 12.7% Elementary school 49 38.9% High school 38 30.2% College / grad school 15 11.9%
Employment
Industry of employment
Education & healthcare
26.3%
Professional & management
23.1%
Finance & real estate
12.2%
Transportation & utilities
8.3%
Arts, food & hospitality
5.1%
Agriculture & mining
2.6%
Public administration
0.6%
Occupation
Category % Management, business & arts 78.8% Service 1.3% Sales & office 19.2% Natural resources & construction 0.6% Production & transportation 0.0%
Employment type
Type % Private sector 72.4% Government 11.5% Self-employed 16.0% Unpaid family workers 0.0%
Commute
Method % Drive alone 39.5% Carpool 2.5% Public transit 0.6% Walk 9.3% Work from home 48.1% Other means 0.0% Avg commute (minutes) 40.9
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households Social Security 41.2% Retirement income 35.1% Supplemental Security 0.0% Cash public assistance 8.2% Food stamps / SNAP 1.0%
Health indicators
Condition % Obesity 21.9% High blood pressure 32.5% High cholesterol 39.9% Diabetes 8.6% Heart disease 6.4% Stroke 2.7% Asthma 8.4% Arthritis 24.5% Kidney disease 2.7% Pulmonary disease 5.7% Cancer 8.3%
Behavior / access % Smoking 10.0% Binge drinking 12.5% No physical activity 15.4% Less than 7 hrs sleep 27.5% Depression 17.5% Fair or poor health 9.3% Poor mental health 11.1% Poor physical health 7.5% No health insurance 7.8% Visited doctor (checkup) 75.4% Visited dentist 73.8% Cholesterol screening 95.7% Teeth loss 6.4%
Veterans & disability
Veterans Count % Civilian veterans 9 3.8%
Disability % Any disability 11.6% Under 18 18.1% 18–64 years 6.7% 65 and over 12.3%
Health insurance coverage
Type % Private insurance 77.6% Public insurance 29.0% No insurance 8.0% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 344 93.5% 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) 349 94.8% Born in same state 333 90.5% Born in different state 151 41.0% Foreign born 16 4.3% Naturalized citizen 19 5.2% Not a US citizen 3 15.8%
Ancestry
Ancestry Count % French 110 29.9% Italian 48 13% Dutch 16 4.3% Arab 11 3%
Ancestry Count % Polish 7 1.9% German 6 1.6% English 1 0.3%
Technology access
Metric % of households Computer access 26.4% Internet access 99.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 20838
What city is ZIP code 20838 in?
ZIP code 20838 is primarily assigned to Barnesville, Maryland.
What county is ZIP code 20838 in?
ZIP code 20838 falls within Montgomery County, Maryland.
Is ZIP code 20838 family-oriented?
35% of residents in ZIP code 20838 are under 18, reflecting a younger, family-oriented community.
How educated is the population of ZIP code 20838?
58% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
Does ZIP code 20838 have a large retiree population?
41% of households in ZIP code 20838 receive Social Security income, suggesting a significant retiree or disability population.
What is the median household income in ZIP code 20838?
The median household income in ZIP code 20838 is $195,938, above the national median of ~$75,000.
What timezone is ZIP code 20838 in?
ZIP code 20838 observes the EST timezone.
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