Dennis Town, MA demographics:
population, income, and more

Total population
2,424
27.4% year-over-year change
Median household income
$109,882/yr
-13.7% year-over-year change
Housing units
2,368
-2.0% year-over-year change

Dennis population

How many people live in Dennis

Dennis is home to 2,424 residents, according to the most recent Census data. Gender-wise, 42.8% of Dennis locals are male, and 57.2% are female.

Total population
2,424
27.4% year-over-year change
Gender ratio
Male
42.8%
1,038
Female
57.2%
1,386
Value Percent YoY change
Male 1,038 42.8% 13.2%
Female 1,386 57.2% 40.6%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Dennis is 63, with the population distributed as follows: about 15.5% are children under 15, then 6.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 6.6% of the population, while another 24.9% fall into the 45 to 64 bracket. Finally, around 46.5% are 65 or older.

Median age
63.3
Age breakdown
Under 15
15.5%
15 to 24
6.6%
25 to 44
6.6%
45 to 64
24.9%
Over 65
46.5%
Value Percent YoY change
Under 15 376 15.5% 114.9%
15 to 24 159 6.6% 29.3%
25 to 44 159 6.6% -8.6%
45 to 64 603 24.9% -3.7%
Over 65 1,127 46.5% 40.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Dennis, 93.2% of the population are US-born citizens, while 4% have gained naturalized citizenship. At the same time, 2.8% of residents are non-citizens. There’s also a share of 0.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
93.2%
Non-U.S.-born citizens
4%
Non-citizens
2.8%
Value Percent YoY change
U.S.-born citizens 2,258 93.2% 27.2%
Non-U.S.-born citizens 98 4% 25.6%
Non-citizens 68 2.8% 36.0%
Racial breakdown
White
90.8%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0.7%
Other
8.5%
Value Percent
White 2,202 90.8%
Two or more races 16 0.7%
Other 206 8.5%

Households in Dennis

A peek inside Dennis households

Dennis has 1,139 households, with an average of 2 members in each. Of these, 69.1% are families, while the remaining 30.9% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,139
20.5% year-over-year change
Average people per household
2
Non-family households
352
Family households
787
Value Percent YoY change
Non-family households 352 30.9% 16.2%
Family households 787 69.1% 22.6%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Dennis

The housing landscape of Dennis

Dennis's housing consists of 2,368 units, with 84.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 6.2% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.5% of the housing landscape.

Housing units
2,368
-2.0% year-over-year change
Housing types
Value Percent
1 unit, detached 2,000 84.5%
1 unit, attached 146 6.2%
2 units 66 2.8%
3 or 4 units 32 1.4%
5 to 9 units 9 0.4%
20 to 49 units 30 1.3%
50 or more units 49 2.1%
Mobile home 36 1.5%
Homes built since 2020
21
90.9% year-over-year change

The age of buildings in Dennis

In Dennis, the median construction year is 1975. About 11.3% of homes were built before the 1940s, with another 4.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 6.7% of homes were added from 2000 to 2009, 4.2% between 2010 and 2019, and 0.9% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 268 11.3% 16.0%
Built between 1940 and 1949 99 4.2% -1.0%
Built between 1950 and 1959 182 7.7% -30.0%
Built between 1960 and 1969 356 15% -12.3%
Built between 1970 and 1979 614 25.9% -3.0%
Built between 1980 and 1989 188 7.9% -30.1%
Built between 1990 and 1999 382 16.1% 12.3%
Built between 2000 and 2009 159 6.7% 43.2%
Built between 2010 and 2019 99 4.2% 76.8%
Built in 2020 or later 21 0.9% 90.9%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Dennis occupancy rates

Out of the 1,139 occupied housing units in Dennis, 85.8% are owner-occupied, while 14.2% are lived in by tenants. Meanwhile, 51.9% of all homes on the local market sit vacant.

Occupied housing units
1,139
20.5% year-over-year change
Occupancy breakdown
Renter occupied
162
Owner occupied
977
Value Percent YoY
change
Renter occupied 162 14.2% 33.9%
Owner occupied 977 85.8% 18.6%
Unoccupied housing units
51.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Dennis housing costs

Housing costs in Dennis come to a median of $1,243 per month, while tenants specifically pay a median gross rent of $1,199.

Median housing costs per month
$1,243/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Dennis
$1,199/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Dennis

Dennis education at a glance

About 22.6% of the population in Dennis went to high school, while 11.2% pursued college studies. Another 9.3% earned an associate degree and 27.5% hold a bachelor’s. Meanwhile, 28% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 28 1.4% N/A
High school diploma 449 22.6% -4.9%
College diploma 224 11.2% 1.4%
Associate degree 185 9.3% -1.1%
Bachelor's degree 547 27.5% 32.8%
Graduate degree 558 28% 31.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Dennis

How much people earn in Dennis

The average annual household income in Dennis was $151,001 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -7.9% change from the previous year. At the same time, the median income stood at $109,882, reflecting a -13.7% shift over the same period.

Average household income in Dennis
$151,001/year
-7.9% year-over-year change
Median household income in Dennis
$109,882/year
-13.7% year-over-year change

Dennis income by age

Those with someone between 45 and 64 in charge, often well established professionally, earn $185,750 overall. Overall, 95.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
45 - 64 $185,750 3.0%
Over 65 $95,769 -5.0%
Above poverty level
2,319
Below poverty level
105
Value Percent YoY
change
Above poverty level 2,319 95.7% 26.0%
Below poverty level 105 4.3% 66.7%

Employment in Dennis

Workforce and job types in Dennis

The job market in Dennis is powered by 829 working residents, spread across a range of industries and roles. 82.9% of the working population are employed in professional or administrative positions, while 17.1% are in hands-on or service-based jobs. Also, 10.6% run their own businesses, 53.3% are employed by private companies, and 17.4% work in the public sector.

Workforce demographics

Working population
829
7.4% year-over-year change
White collar
687
Blue collar
142
Value Percent YoY change
White collar 687 82.9% 2.1%
Blue collar 142 17.1% 43.4%
Employer type
Self employees
10.6%
Private companies
53.3%
Governmental workers
17.4%
Not for profit companies
18.7%
Value Percent YoY change
Self employees 88 10.6% -17.8%
Private companies 442 53.3% 10.2%
Governmental workers 144 17.4% -13.8%
Not for profit companies 155 18.7% 59.8%
Unemployment rate
3.2%
8.0% year-over-year change

Available workforce

The unemployment rate in Dennis stands at 3.2%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Dennis

How people get around in Dennis

Commuting methods vary: 65.5% of residents travel by personal vehicle and 1% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 540 65.5% 4.5%
Bus or trolleybus 15 1.8% N/A
Walk 8 1% -20.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Dennis by zipcode?

Zipcode Population Number of households Median income Average income
02638 3,253 1,440 $108,726 $144,821
02639 3,808 1,917 $72,567 $97,843
02641 316 166 $0 $90,172
02660 6,381 3,032 $93,386 $110,219
02670 1,087 724 $87,019 $140,301

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FAQs about Dennis demographics 

What is the total population of Dennis?

Dennis has a total population of 2,424 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +27.4% compared to a year ago.

What is the gender ratio in Dennis?

The gender ratio in Dennis is as follows:
  • 42.8% males (1,038 residents)
  • 57.2% females (1,386 residents)

What is the median age in Dennis?

The median age in Dennis is 63.3.

What is the age distribution of the population in Dennis?

The age distribution in Dennis is as follows:
  • Under 15: 15.5% (376 residents)
  • Ages 15-24: 6.6% (159 residents)
  • Ages 25-44: 6.6% (159 residents)
  • Ages 45-64: 24.9% (603 residents)
  • Over 65: 46.5% (1,127 residents)

What is the racial and ethnic makeup of Dennis?

The racial and ethnic makeup of Dennis is as follows:
  • White: 90.8% (2,202 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 0.7% (16 residents)
  • Other: 8.5% (206 residents)

What percentage of the population in Dennis are U.S.-born citizens?

U.S.-born citizens represent 93.2% of the population in Dennis.

How many housing units are there in Dennis?

There are 2,368 housing units in Dennis, reflecting a -2.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Dennis and what is the average household size?

Dennis has a total of 1,139 households, with an average of 2 people in each.

What is the median household income in Dennis?

Dennis has a median household income of $109,882, representing a -13.7% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Dennis?

The employment rate is 96.8% in Dennis, with a workforce of 829 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 82.9% (687 residents)
  • Blue-collar workers: 17.1% (142 residents)

Places of employment:
  • Self-employed: 10.6% (88 residents)
  • Private companies: 53.3% (442 residents)
  • Governmental workers: 17.4% (144 residents)
  • Not-for-profit companies: 18.7% (155 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025