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Maryland ZIP Codes
Calvert County
Huntingtown, MD
20639
20639 ZIP Code — Huntingtown, MD
Calvert County, Maryland
ZIP code 20639 is located in
Huntingtown ,
Maryland ,
within Calvert County .
It covers approximately 41.60 square miles and serves a population of
15,058 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 443/410 .
About ZIP code 20639
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $489,300. Owner-occupancy is high at 94%, well above the national average.
Median household income is $144,035. The poverty rate of 3% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 42 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 11% of civilians, above the national average of 7%.
Overall, ZIP code 20639 reflects a community defined by a strong veteran community and high homeownership.
20639 ZIP code map
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Cities in ZIP code 20639
Below are the cities the US Postal Service accepts for ZIP code 20639. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
15,058
Population density
362 / sq mi
State FIPS
24
County FIPS
009
Geography
Land area
41.60 sq mi
Water area
1.93 sq mi
Latitude
38.6101
Longitude
-76.5989
Timezone
Eastern (ET)
Area code
443/410
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
9.2%
17.9%
28.2%
$50k – $100k
23.2%
25.0%
28.2%
$100k – $200k
43.4%
39.4%
30.1%
Over $200k
24.2%
17.7%
13.4%
Demographics & statistics
$144,035
Median household income
$489,300
Median home value
$1,211
Median monthly rent
36.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 4,144 27.5%
18 and over 10,914 72.5%
65 and over 2,175 14.4%
Median age 39.3 years
Race & ethnicity
Black or African American
11.1%
American Indian / Alaska Native
0.1%
Group Count %
White 11,708 75.5%
Black or African American 1,720 11.1%
Two or more races 1,253 8.1%
Hispanic or Latino 440 2.8%
Asian 349 2.3%
Other race 18 0.1%
American Indian / Alaska Native 10 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
9.2%
17.9%
28.2%
$50k – $100k
23.2%
25.0%
28.2%
$100k – $200k
43.4%
39.4%
30.1%
Over $200k
24.2%
17.7%
13.4%
Range % of households
Under $10k 1.2%
$10k–$15k 1.2%
$15k–$25k 3.1%
$25k–$35k 4.2%
$35k–$50k 2.3%
$50k–$75k 4.8%
$75k–$100k 12.8%
$100k–$150k 23.0%
$150k–$200k 20.5%
$200k+ 27.0%
Median income $144,035
Housing
Housing overview
Metric Value
Median home value $489,300
Median rent / month $1,211
Owner occupied 93.9%
Renter occupied 6.1%
Vacant 3.2%
Single-family detached 98.6%
Large apartment buildings 0.0%
Mobile homes 1.0%
Median rooms 8.1
Avg household size (owned) 3.07
Year built
Era %
2020 or later 0.0%
2010–2019 8.6%
2000–2009 16.3%
1990–1999 23.7%
1980–1989 19.5%
1970–1979 22.5%
1960–1969 2.0%
1950–1959 3.3%
1940–1949 2.2%
1939 or earlier 1.9%
Bedrooms
Size % of units
No bedroom (studio) 0.7%
1 bedroom 2.0%
2 bedrooms 3.7%
3 bedrooms 38.7%
4 bedrooms 38.7%
5+ bedrooms 16.2%
Vehicles per household
Vehicles % of households
No vehicle 1.7%
1 vehicle 12.2%
2 vehicles 42.8%
3 or more 43.4%
Heating fuel
Fuel type %
Utility gas 2.5%
Electricity 64.7%
Propane / LP gas 9.6%
Fuel oil 14.7%
Wood 6.8%
Solar 0.2%
No fuel used 0.7%
Households & families
Household type Count %
Married-couple family 3,530 72.1%
Cohabiting couple 271 5.5%
Male householder, no spouse 403 8.2%
Female householder, no spouse 689 14.1%
Households with children under 18 1,921 39.3%
Households with seniors (65+) 1,426 29.1%
Average household size 3.07
Marital status
Status Male Female
Never married 29.9% 24.2%
Married 63.1% 58.7%
Separated 0.0% 0.6%
Widowed 1.4% 7.1%
Divorced 5.6% 9.5%
Education
Some college, no degree
20.3%
Graduate / professional
17.3%
Metric %
HS diploma or higher 96.5%
Bachelor's or higher 36.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 183 4.4%
Kindergarten 264 6.3%
Elementary school 1,866 44.9%
High school 1,027 24.7%
College / grad school 820 19.7%
Employment
Industry of employment
Education & healthcare
21.5%
Public administration
18.8%
Professional & management
10.8%
Arts, food & hospitality
5.8%
Transportation & utilities
4.9%
Finance & real estate
3.2%
Agriculture & mining
0.2%
Occupation
Category %
Management, business & arts 49.4%
Service 17.3%
Sales & office 14.1%
Natural resources & construction 12.5%
Production & transportation 6.7%
Employment type
Type %
Private sector 63.6%
Government 29.8%
Self-employed 6.6%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 77.1%
Carpool 6.2%
Public transit 1.8%
Walk 0.6%
Work from home 13.6%
Other means 0.6%
Avg commute (minutes) 42.2
Poverty
Married-couple families
1.1%
Female-led households
6.2%
Income support
Source % of households
Social Security 29.6%
Retirement income 34.2%
Supplemental Security 3.5%
Cash public assistance 1.0%
Food stamps / SNAP 1.2%
Health indicators
Condition %
Obesity 35.1%
High blood pressure 32.0%
High cholesterol 34.5%
Diabetes 9.2%
Heart disease 4.9%
Stroke 2.4%
Asthma 9.7%
Arthritis 26.2%
Kidney disease 2.4%
Pulmonary disease 5.3%
Cancer 6.5%
Behavior / access %
Smoking 14.2%
Binge drinking 15.4%
No physical activity 18.4%
Less than 7 hrs sleep 35.2%
Depression 18.5%
Fair or poor health 10.1%
Poor mental health 13.3%
Poor physical health 7.6%
No health insurance 8.3%
Visited doctor (checkup) 75.7%
Visited dentist 72.0%
Cholesterol screening 93.2%
Teeth loss 8.4%
Veterans & disability
Veterans Count %
Civilian veterans 1,229 11.4%
Disability %
Any disability 8.7%
Under 18 3.8%
18–64 years 6.7%
65 and over 25.6%
Health insurance coverage
Type %
Private insurance 86.5%
Public insurance 23.3%
No insurance 3.5%
Uninsured under 19 3.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 14,169 94.1%
Spanish 86 0.6%
Other Indo-European 46 0.3%
Asian & Pacific Islander 9 0.1%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 14,804 98.3%
Born in same state 14,599 97.0%
Born in different state 8,104 53.8%
Foreign born 205 1.4%
Naturalized citizen 254 1.7%
Not a US citizen 185 72.8%
Ancestry
Ancestry Count %
French 2,152 14.3%
Italian 1,893 12.6%
Arab 998 6.6%
English 102 0.7%
Ancestry Count %
Dutch 68 0.5%
Polish 66 0.4%
German 45 0.3%
Norwegian 22 0.1%
Technology access
Metric % of households
Computer access 32.5%
Internet access 94.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 20639
What city is ZIP code 20639 in?
ZIP code 20639 is primarily assigned to Huntingtown, Maryland.
What county is ZIP code 20639 in?
ZIP code 20639 falls within Calvert County, Maryland.
Is ZIP code 20639 mostly owner-occupied?
94% of occupied units in ZIP code 20639 are owner-occupied, well above the national average.
Does ZIP code 20639 have a large veteran population?
11% of civilians in ZIP code 20639 are veterans, above the national average of ~7%.
What is the median household income in ZIP code 20639?
The median household income in ZIP code 20639 is $144,035, above the national median of ~$75,000.
What is the typical home value in ZIP code 20639?
The median home value in ZIP code 20639 is $489,300.
What timezone is ZIP code 20639 in?
ZIP code 20639 observes the EST timezone.
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