South Dennis, Massachusetts Population 2024

3,307

South Dennis is a city located in Barnstable County Massachusetts. South Dennis has a 2024 population of 3,307. South Dennis is currently growing at a rate of 3.21% annually and its population has increased by 14.23% since the most recent census, which recorded a population of 2,895 in 2020.

The average household income in South Dennis is $100,543 with a poverty rate of 3.52%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in South Dennis is 53.3 years, 49.6 years for males, and 56.3 years for females.

South Dennis Demographics

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

  • White: 93.07%
  • Black or African American: 5.16%
  • Two or more races: 1.48%
  • Asian: 0.29%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
Land Area (mi²)
4.6 sq mi
Density (mi²)
726.80/sq mi
Growth Since 2020
14.23% (412)
The current population of South Dennis, Massachusetts is 3,307 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 2,895.

South Dennis, Massachusetts Population 2024

Population by Race

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Race
Population
Percentage (of total)
White2,88693.07%
Black or African American1605.16%
Two or more races461.48%
Asian90.29%
Native American00%
Native Hawaiian or Pacific Islander00%
Other race00%

White

Black or African American

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

South Dennis Population by Race

South Dennis Population Pyramid 2024

South Dennis Median Age

53.3

Total

49.6

Male

56.3

Female

South Dennis Adults

There are 2,741 adults, (949 of whom are seniors) in South Dennis.

South Dennis Age Dependency

73

Age Dependency Ratio

53

Old Age Dependency Ratio

20.1

Child Dependency Ratio

South Dennis Sex Ratio

Female1,51648.89%
Male1,58551.11%

South Dennis Population by Age

South Dennis Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,4222.1283.116.9
Married6382.7991.58.5
Non Family6151.2476.423.6
Female942.9386.213.8
Male752.5662.737.3

2.75

Average Family Size

2.12

Average Household Size

83.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

South Dennis Households and Families

Male

Female

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Education Attained
Count
Percentage
Less Than 9th Grade160.63%
9th to 12th Grade1174.61%
High School Graduate70727.83%
Some College46418.27%
Associates Degree34113.43%
Bachelors Degree61024.02%
Graduate Degree28511.22%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

South Dennis Educational Attainment by Sex (over 25)

South Dennis Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White2,3782,272886
Black102860
2+ Races46400
Hispanic1430
Asian999

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

The highest rate of bachelors degrees is among asian people with a rate of 100%.

South Dennis Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Overall$53,787$55,556$47,431
Less Than 9th Grade$68,878$0$0
High School Graduate$61,905$61,875$65,034
Some College$46,000$47,344$45,664
Bachelors Degree$58,707$53,235$59,741
Graduate Degree$38,250$93,125$38,000

$53,787

Average Earnings

$55,556

Average Male

$47,431

Average Female

South Dennis Earnings by Educational Attainment

South Dennis Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

South Dennis Language

97.24% of South Dennis residents speak only English, while 2.76% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.6% of the population.

South Dennis Language

South Dennis Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White2,8061063.78%

3.52%

Overall Poverty Rate

2.92%

Male Poverty Rate

4.18%

Female Poverty Rate

Poverty in South Dennis

The race most likely to be in poverty in South Dennis is White, with 3.78% below the poverty level.

The race least likely to be in poverty in South Dennis is White, with 3.78% 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 0%, and for those that did not work, the poverty rate was 12.38%.

South Dennis Poverty

rate

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Rate
Poverty
High School6.42%
Bachelors or Greater4.29%
Some College3.13%
Less Than 9th Grade0%

South Dennis Poverty Rate by Education

rate

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Rate
Poverty
Male Employed0%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

South Dennis Poverty Rate by Employment Status and Sex

South Dennis Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Households$81,607$100,543
Families$110,903$122,230
Married Families$114,010$-999,999,999
Non Families$62,120$70,441

mean

median

Income by Household Type

South Dennis Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

51.1%

Overall Marriage Rate

50.7%

Male Marriage Rate

51.5%

Female Marriage Rate

South Dennis Married by Age and Sex

male

female

South Dennis Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

South Dennis Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

South Dennis Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

204

Number of Veterans

179

Male Veterans

25

Female Veterans

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War
Veterans
Vietnam87
World War II17
Korea14
Second Gulf War10
First Gulf War0

South Dennis Veterans by War

count

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Age Group
Veterans
65 to 7480
75+76
55 to 6434
35 to 5414
18 to 340

South Dennis Veterans by Age

count

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Name
Veterans
% of Total
White2048.06%

South Dennis Veterans by Race

South Dennis Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.33%

Veteran Poverty Rate

52.45%

Veteran Disability Rate

South Dennis Veterans by Education

LaborForceParticipation

61%

Labor Force Participation

59.1%

Employment Rate

3%

Unemployment Rate

South Dennis Employment by Age

LaborForceParticipation

South Dennis Employment by Race

LaborForceParticipation

South 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

69.62%

Born in South Dennis

92.52%

Native Born

7.48%

Foreign Born

2.13%

Non Citizen

5.35%

Naturalized

Place of Birth

92.52% of South Dennis residents were born in the United States, with 69.62% having been born in Massachusetts. 2.13% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

South Dennis Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20243,3071033.21%
20233,2041033.32%
20223,101-158-4.85%
20213,25936412.57%
20202,895-498-14.68%
20193,393-291-7.9%
20183,684491.35%
20173,635531.48%
20163,5821544.49%
20153,428-171-4.75%
20143,5992417.18%
20133,358-12-0.36%
20123,370-116-3.33%
20113,486-157-4.31%
20103,64300%

South Dennis Population by Year