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Maryland ZIP Codes
Washington County
Hagerstown, MD
21742
21742 ZIP Code — Hagerstown, MD
Washington County, Maryland
ZIP code 21742 is located in
Hagerstown ,
Maryland ,
within Washington County .
It covers approximately 46.50 square miles and serves a population of
34,549 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 240/301 .
About ZIP code 21742
The housing stock consists of a mix of housing types. Most homes were built in the 1990s, giving the area an established character. Median home value is $268,300. Owner-occupancy sits near the national average at 67%.
Median household income is $80,306. 36% 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 27 minutes is near the national average.
Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 21742
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
34,549
Population density
743 / sq mi
State FIPS
24
County FIPS
043
Geography
Land area
46.50 sq mi
Water area
0.03 sq mi
Latitude
39.6542
Longitude
-77.6546
Timezone
Eastern (ET)
Area code
240/301
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.5%
40.3%
28.2%
$50k – $100k
34.1%
30.7%
28.2%
$100k – $200k
22.3%
23.5%
30.1%
Over $200k
9.0%
5.6%
13.4%
Demographics & statistics
$80,306
Median household income
$268,300
Median home value
$1,195
Median monthly rent
29.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 8,190 23.7%
18 and over 26,359 76.3%
65 and over 6,780 19.6%
Median age 41.0 years
Race & ethnicity
Black or African American
10.1%
American Indian / Alaska Native
0.1%
Native Hawaiian / Pacific Islander
0.1%
Group Count %
White 25,984 71.7%
Black or African American 3,649 10.1%
Two or more races 3,216 8.9%
Hispanic or Latino 1,682 4.6%
Asian 975 2.7%
Other race 661 1.8%
American Indian / Alaska Native 32 0.1%
Native Hawaiian / Pacific Islander 32 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.5%
40.3%
28.2%
$50k – $100k
34.1%
30.7%
28.2%
$100k – $200k
22.3%
23.5%
30.1%
Over $200k
9.0%
5.6%
13.4%
Range % of households
Under $10k 5.4%
$10k–$15k 1.9%
$15k–$25k 6.2%
$25k–$35k 6.1%
$35k–$50k 10.8%
$50k–$75k 16.8%
$75k–$100k 15.2%
$100k–$150k 17.8%
$150k–$200k 8.9%
$200k+ 10.9%
Median income $80,306
Housing
Housing overview
Metric Value
Median home value $268,300
Median rent / month $1,195
Owner occupied 67.0%
Renter occupied 33.0%
Vacant 5.6%
Single-family detached 56.8%
Large apartment buildings 5.1%
Mobile homes 2.6%
Median rooms 6.2
Avg household size (owned) 2.66
Year built
Era %
2020 or later 0.3%
2010–2019 6.1%
2000–2009 16.7%
1990–1999 17.4%
1980–1989 10.3%
1970–1979 9.1%
1960–1969 8.9%
1950–1959 12.4%
1940–1949 6.9%
1939 or earlier 11.9%
Bedrooms
Size % of units
No bedroom (studio) 0.2%
1 bedroom 5.6%
2 bedrooms 25.9%
3 bedrooms 44.4%
4 bedrooms 18.1%
5+ bedrooms 5.8%
Vehicles per household
Vehicles % of households
No vehicle 5.8%
1 vehicle 31.3%
2 vehicles 36.9%
3 or more 26.0%
Heating fuel
Fuel type %
Utility gas 31.1%
Electricity 45.6%
Propane / LP gas 3.6%
Fuel oil 16.4%
Wood 2.6%
No fuel used 0.5%
Households & families
Household type Count %
Married-couple family 6,646 50.2%
Cohabiting couple 1,097 8.3%
Male householder, no spouse 1,969 14.9%
Female householder, no spouse 3,534 26.7%
Households with children under 18 4,327 32.7%
Households with seniors (65+) 4,738 35.8%
Average household size 2.58
Marital status
Status Male Female
Never married 32.5% 25.3%
Married 53.0% 49.5%
Separated 3.5% 2.2%
Widowed 3.1% 8.8%
Divorced 7.9% 14.2%
Education
Some college, no degree
22.4%
Graduate / professional
12.2%
Metric %
HS diploma or higher 90.6%
Bachelor's or higher 29.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 608 7.5%
Kindergarten 480 6.0%
Elementary school 3,550 44.1%
High school 1,725 21.4%
College / grad school 1,694 21.0%
Employment
Industry of employment
Education & healthcare
22.0%
Professional & management
12.3%
Arts, food & hospitality
9.2%
Transportation & utilities
8.1%
Finance & real estate
6.4%
Public administration
6.0%
Agriculture & mining
0.9%
Occupation
Category %
Management, business & arts 43.1%
Service 16.4%
Sales & office 21.6%
Natural resources & construction 6.6%
Production & transportation 12.4%
Employment type
Type %
Private sector 80.5%
Government 14.2%
Self-employed 4.7%
Unpaid family workers 0.6%
Commute
Method %
Drive alone 76.1%
Carpool 9.3%
Public transit 0.7%
Walk 1.9%
Work from home 10.9%
Other means 1.1%
Avg commute (minutes) 26.9
Poverty
Married-couple families
3.9%
Female-led households
29.3%
Income support
Source % of households
Social Security 35.9%
Retirement income 28.3%
Supplemental Security 3.6%
Cash public assistance 3.6%
Food stamps / SNAP 14.7%
Health indicators
Condition %
Obesity 34.0%
High blood pressure 35.7%
High cholesterol 34.7%
Diabetes 10.1%
Heart disease 6.4%
Stroke 2.9%
Asthma 10.3%
Arthritis 27.1%
Kidney disease 2.8%
Pulmonary disease 6.5%
Cancer 7.4%
Behavior / access %
Smoking 16.5%
Binge drinking 14.3%
No physical activity 24.2%
Less than 7 hrs sleep 32.8%
Depression 19.7%
Fair or poor health 12.1%
Poor mental health 13.8%
Poor physical health 9.0%
No health insurance 10.2%
Visited doctor (checkup) 77.9%
Visited dentist 66.4%
Cholesterol screening 91.9%
Teeth loss 12.0%
Veterans & disability
Veterans Count %
Civilian veterans 2,146 8.2%
Disability %
Any disability 15.8%
Under 18 9.1%
18–64 years 13.1%
65 and over 32.1%
Health insurance coverage
Type %
Private insurance 69.4%
Public insurance 42.5%
No insurance 6.2%
Uninsured under 19 4.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 32,149 93.1%
Spanish 959 3.0%
Other Indo-European 745 2.3%
Asian & Pacific Islander 127 0.4%
Other languages 42 0.1%
Place of birth & citizenship
Origin Count %
Native born (US) 31,892 92.3%
Born in same state 31,268 90.5%
Born in different state 20,070 58.1%
Foreign born 624 1.8%
Naturalized citizen 2,657 7.7%
Not a US citizen 1,330 50.1%
Ancestry
Ancestry Count %
French 4,917 14.2%
Italian 3,946 11.4%
Arab 1,571 4.5%
Polish 167 0.5%
Ancestry Count %
English 159 0.5%
Irish 95 0.3%
German 27 0.1%
Dutch 16 0%
Technology access
Metric % of households
Computer access 38.3%
Internet access 93.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21742
What city is ZIP code 21742 in?
ZIP code 21742 is primarily assigned to Hagerstown, Maryland.
What county is ZIP code 21742 in?
ZIP code 21742 falls within Washington County, Maryland.
Does ZIP code 21742 have a large retiree population?
36% of households in ZIP code 21742 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 21742?
ZIP code 21742 has an estimated population of 34,549 residents, with a density of 743 people per square mile.
What is the typical home value in ZIP code 21742?
The median home value in ZIP code 21742 is $268,300.
What is the median household income in ZIP code 21742?
The median household income in ZIP code 21742 is $80,306, above the national median of ~$75,000.
What timezone is ZIP code 21742 in?
ZIP code 21742 observes the EST timezone.
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