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Massachusetts ZIP Codes
Barnstable County
Dennis Port, MA
02639
02639 ZIP Code — Dennis Port, MA
Barnstable County, Massachusetts
ZIP code 02639 is located in
Dennis Port ,
Massachusetts ,
within Barnstable County .
It covers approximately 2.80 square miles and serves a population of
3,308 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 774/508 .
About ZIP code 02639
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1950s, giving the area an established character. Median home value is $409,100. Owner-occupancy sits near the national average at 72%.
The gap between median ($57,679) and mean household income suggests income inequality — a small number of higher earners pull the average up. 38% 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 34% of residents holding a bachelor's degree or higher.
02639 ZIP code map
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Cities in ZIP code 02639
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
3,308
Population density
1,181 / sq mi
State FIPS
25
County FIPS
001
Geography
Land area
2.80 sq mi
Water area
0.26 sq mi
Latitude
41.6707
Longitude
-70.1376
Timezone
Eastern (ET)
Area code
774/508
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
55.3%
31.6%
31.3%
$50k – $100k
26.6%
30.4%
25.9%
$100k – $200k
15.4%
27.2%
28.5%
Over $200k
2.7%
10.7%
14.3%
Demographics & statistics
$57,679
Median household income
$409,100
Median home value
$1,150
Median monthly rent
34.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 398 12.0%
18 and over 2,910 88.0%
65 and over 856 25.9%
Median age 51.1 years
Race & ethnicity
Black or African American
3.8%
Group Count %
White 2,475 64.1%
Two or more races 672 17.4%
Hispanic or Latino 551 14.3%
Black or African American 146 3.8%
Asian 15 0.4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
55.3%
31.6%
31.3%
$50k – $100k
26.6%
30.4%
25.9%
$100k – $200k
15.4%
27.2%
28.5%
Over $200k
2.7%
10.7%
14.3%
Range % of households
Under $10k 7.6%
$10k–$15k 4.3%
$15k–$25k 5.2%
$25k–$35k 8.9%
$35k–$50k 16.8%
$50k–$75k 18.3%
$75k–$100k 12.2%
$100k–$150k 11.9%
$150k–$200k 9.6%
$200k+ 5.1%
Median income $57,679
Housing
Housing overview
Metric Value
Median home value $409,100
Median rent / month $1,150
Owner occupied 71.7%
Renter occupied 28.3%
Vacant 67.2%
Single-family detached 71.7%
Large apartment buildings 4.3%
Mobile homes 1.7%
Median rooms 4.7
Avg household size (owned) 2.01
Year built
Era %
2020 or later 0.0%
2010–2019 1.8%
2000–2009 1.8%
1990–1999 0.9%
1980–1989 11.9%
1970–1979 19.4%
1960–1969 16.8%
1950–1959 26.0%
1940–1949 9.8%
1939 or earlier 11.5%
Bedrooms
Size % of units
No bedroom (studio) 4.6%
1 bedroom 17.4%
2 bedrooms 29.6%
3 bedrooms 34.8%
4 bedrooms 9.8%
5+ bedrooms 3.7%
Vehicles per household
Vehicles % of households
No vehicle 5.9%
1 vehicle 46.4%
2 vehicles 36.8%
3 or more 10.9%
Heating fuel
Fuel type %
Utility gas 64.8%
Electricity 14.5%
Propane / LP gas 3.9%
Fuel oil 14.5%
Wood 1.8%
Households & families
Household type Count %
Married-couple family 561 33.6%
Cohabiting couple 69 4.1%
Male householder, no spouse 533 31.9%
Female householder, no spouse 508 30.4%
Households with children under 18 303 18.1%
Households with seniors (65+) 654 39.1%
Average household size 1.97
Marital status
Status Male Female
Never married 40.7% 23.6%
Married 48.5% 45.9%
Separated 2.3% 0.0%
Widowed 0.0% 6.5%
Divorced 8.5% 23.9%
Education
Some college, no degree
28.5%
Graduate / professional
9.5%
Metric %
HS diploma or higher 96.7%
Bachelor's or higher 34.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 35 5.7%
Kindergarten 23 3.7%
Elementary school 154 24.9%
High school 97 15.7%
College / grad school 310 50.1%
Employment
Industry of employment
Education & healthcare
26.5%
Professional & management
16.5%
Arts, food & hospitality
7.7%
Finance & real estate
4.5%
Transportation & utilities
3.6%
Public administration
1.6%
Agriculture & mining
1.1%
Occupation
Category %
Management, business & arts 42.3%
Service 20.3%
Sales & office 10.0%
Natural resources & construction 23.4%
Production & transportation 4.0%
Employment type
Type %
Private sector 88.4%
Government 6.6%
Self-employed 5.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 62.6%
Carpool 18.1%
Public transit 0.8%
Walk 5.7%
Work from home 12.1%
Other means 0.7%
Avg commute (minutes) 27.1
Poverty
Married-couple families
3.2%
Female-led households
40.2%
Income support
Source % of households
Social Security 38.4%
Retirement income 26.4%
Supplemental Security 4.8%
Cash public assistance 4.5%
Food stamps / SNAP 9.5%
Health indicators
Condition %
Obesity 27.4%
High blood pressure 34.2%
High cholesterol 33.9%
Diabetes 9.8%
Heart disease 7.5%
Stroke 3.4%
Asthma 11.0%
Arthritis 29.4%
Kidney disease 3.3%
Pulmonary disease 7.1%
Cancer 8.5%
Behavior / access %
Smoking 15.0%
Binge drinking 16.2%
No physical activity 20.0%
Less than 7 hrs sleep 30.2%
Depression 20.2%
Fair or poor health 12.9%
Poor mental health 14.0%
Poor physical health 10.2%
No health insurance 6.4%
Visited doctor (checkup) 81.2%
Visited dentist 70.6%
Cholesterol screening 91.7%
Teeth loss 11.2%
Veterans & disability
Veterans Count %
Civilian veterans 216 7.4%
Disability %
Any disability 11.6%
Under 18 0.0%
18–64 years 5.2%
65 and over 32.5%
Health insurance coverage
Type %
Private insurance 60.6%
Public insurance 55.2%
No insurance 4.3%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,203 96.8%
Spanish 226 7.1%
Other Indo-European 197 6.2%
Asian & Pacific Islander 29 0.9%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,929 88.5%
Born in same state 2,917 88.2%
Born in different state 2,208 66.7%
Foreign born 12 0.4%
Naturalized citizen 379 11.5%
Not a US citizen 59 15.6%
Ancestry
Ancestry Count %
Italian 842 25.5%
French 549 16.6%
Arab 40 1.2%
Ancestry Count %
English 13 0.4%
German 12 0.4%
Irish 10 0.3%
Technology access
Metric % of households
Computer access 50.5%
Internet access 96.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 02639
What city is ZIP code 02639 in?
ZIP code 02639 is primarily assigned to Dennis Port, Massachusetts.
What county is ZIP code 02639 in?
ZIP code 02639 falls within Barnstable County, Massachusetts.
Does ZIP code 02639 have an older population?
26% of residents in ZIP code 02639 are 65 or older, above the national average of ~17%.
Does ZIP code 02639 have a large retiree population?
38% of households in ZIP code 02639 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 02639?
The median home value in ZIP code 02639 is $409,100.
What is the population of ZIP code 02639?
ZIP code 02639 has an estimated population of 3,308 residents, with a density of 1,183 people per square mile.
What timezone is ZIP code 02639 in?
ZIP code 02639 observes the EST timezone.
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