Dennis, Massachusetts Population 2024

1,834

Dennis is a city located in Barnstable County Massachusetts. Dennis has a 2024 population of 1,834. Dennis is currently declining at a rate of -1.71% annually and its population has decreased by -6.52% since the most recent census, which recorded a population of 1,962 in 2020.

The average household income in Dennis is $143,700 with a poverty rate of 4.43%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Dennis is 64.1 years, 64.3 years for males, and 63.8 years for females.

Dennis Demographics

According to the most recent ACS, the racial composition of Dennis was:

  • White: 95.26%
  • Two or more races: 3.64%
  • Other race: 1.11%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
4.9 sq mi
Density (mi²)
373.40/sq mi
Growth Since 2020
-6.52% (-128)
The current population of Dennis, Massachusetts is 1,834 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,962.

Dennis, Massachusetts Population 2024

Population by Race

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Race
Population
Percentage (of total)
White1,80895.26%
Two or more races693.64%
Other race211.11%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Dennis Population by Race

Dennis Population Pyramid 2024

Dennis Median Age

64.1

Total

64.3

Male

63.8

Female

Dennis Adults

There are 1,735 adults, (909 of whom are seniors) in Dennis.

Dennis Age Dependency

129.8

Age Dependency Ratio

110

Old Age Dependency Ratio

19.7

Child Dependency Ratio

Dennis Sex Ratio

Female95850.47%
Male94049.53%

Dennis Population by Age

Dennis Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All9861.9284.215.8
Married5162.35955
Non Family3671.1776.823.2
Female1032.4856.343.7
Male0000

2.32

Average Family Size

1.92

Average Household Size

84.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Dennis Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Dennis Educational Attainment by Sex (over 25)

Dennis Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 53.8%.

Dennis Educational Attainment by Race

All

Male

Female

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$59,091

Average Earnings

$68,750

Average Male

$49,583

Average Female

Dennis Earnings by Educational Attainment

Dennis Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Dennis Language

97.01% of Dennis residents speak only English, while 2.99% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.99% of the population.

Dennis Language

Dennis Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,801774.28%
Hispanic77100%

4.43%

Overall Poverty Rate

4.15%

Male Poverty Rate

4.7%

Female Poverty Rate

Poverty in Dennis

The race most likely to be in poverty in Dennis is Hispanic, with 100% below the poverty level.

The race least likely to be in poverty in Dennis is White, with 4.28% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 5.31%, and for those that did not work, the poverty rate was 2.9%.

Dennis Poverty

rate

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Rate
Poverty
Less Than 9th Grade10.45%
High School4.89%
Bachelors or Greater2.46%
Some College0%

Dennis Poverty Rate by Education

rate

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Rate
Poverty
Female Employed5.03%
Male Employed0%
Male Unemployed0%
Female Unemployed0%

Dennis Poverty Rate by Employment Status and Sex

Dennis Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Dennis Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

62.7%

Overall Marriage Rate

66.9%

Male Marriage Rate

58.7%

Female Marriage Rate

Dennis Married by Age and Sex

male

female

Dennis Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Dennis Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Dennis Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

108

Number of Veterans

108

Male Veterans

0

Female Veterans

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Dennis Veterans by War

count

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Dennis Veterans by Age

count

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Dennis Veterans by Race

Dennis Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

34.26%

Veteran Disability Rate

Dennis Veterans by Education

LaborForceParticipation

47.7%

Labor Force Participation

45.1%

Employment Rate

5.5%

Unemployment Rate

Dennis Employment by Age

LaborForceParticipation

Dennis Employment by Race

LaborForceParticipation

Dennis Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

66.81%

Born in Dennis

94.36%

Native Born

5.64%

Foreign Born

1.53%

Non Citizen

4.11%

Naturalized

Place of Birth

94.36% of Dennis residents were born in the United States, with 66.81% having been born in Massachusetts. 1.53% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Dennis Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20241,834-32-1.71%
20231,866-32-1.69%
20221,898-92-4.62%
20211,990281.43%
20201,962-345-14.95%
20192,307-53-2.25%
20182,360-8-0.34%
20172,368-139-5.54%
20162,507-44-1.72%
20152,5511204.94%
20142,4311355.88%
20132,296-11-0.48%
20122,307-23-0.99%
20112,330-77-3.2%
20102,40700%

Dennis Population by Year