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CITY · 2020 ACS

South Dennis

Massachusetts · 3,899 residents · 4.55 sq mi
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The short version

South Dennis has roughly average household income, with a median household income of $61,971. Population has held roughly steady since 2000. Median home value has more than doubled since 2000, reaching $323,300. With a median age of 55.6, the population is older than the US median of 38.8. Households here earn about 27% less than the Massachusetts median.

At a glance
Lower income
below the US median
US median: $66,278
Older
median age 55.6
US median: 38.8
Average education
31% hold a bachelor's degree
US average: 33%
Less affordable
home values up 56%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
3,899
+6%since 2000
from 3,679 in 2000
1990 – 2024
Population density
857 / sq mi
+6%since 2000
from 809 / sq mi in 2000
US average: 280
Median age
55.6
+22%since 2000
from 45.5 in 2000
US average: 38.8
Population, 1990 – 2024
3K3K4K4K4K1990201020202024South Dennis
20243K
1990201020202024
Section 02

Income & economy

Median household income
$61,971
+2%inflation adjusted, since 2000
from $40,330 in 2000
US average: $66,278
1990 – 2024
Per capita income
$34,686
+51%since 2000
from $22,974 in 2000
US average: $35,364
Households earning $100K+
40.9%
+7.8 ptssince 2009
from 33.1% in 2009
US average: 43.9%
Poverty rate
7.8%
+4.6 ptssince 2000
from 3.2% in 2000
US average: 12.8%
Workforce by industry, 2020
Information12%
US avg: 11.1%
Other services9.5%
US avg: 6.6%
Wholesale trade8.8%
US avg: 6.7%
Finance & insurance6%
US avg: 5.5%
Public administration5.7%
US avg: 4.7%
Transportation & warehousing5.3%
US avg: 2.5%
Retail trade3.7%
US avg: 10%
Professional, scientific, technical3.7%
US avg: 4.7%
Education & health services2.3%
US avg: 0.8%
Arts, entertainment, food2.1%
US avg: 2%
Agriculture, forestry, fishing0%
US avg: 1.7%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$323,300
+56%inflation adjusted, since 2000
from $137,900 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,377
+14%inflation adjusted, since 2000
from $806 in 2000
US average: $1,124
Owner-occupied
79.5%
−0.1 ptssince 2000
from 79.7% in 2000
20.5% rent
Afford Score
5.2
+53%since 2000
from 3.4 in 2000
1990 – 2024
RELATED:See current rent listings in South Dennis on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic94.5%(3,477)
Black1%(37)
Hispanic / Latino1.3%(48)
Asian0.4%(13)
Other0%
Diversity Score6.7%(247)
2020
White, non-Hispanic86.4%(3,367)
Black4.4%(170)
Hispanic / Latino3%(117)
Asian0.5%(20)
Other1.4%(55)
Diversity Score22.7%(885)
Diversity Score
23
+238%since 2000
from 7 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
30.8%
+6.2 ptssince 2000
from 24.6% in 2000
US average: 32.9%
High school or higher
94.4%
+1.1 ptssince 2000
from 93.3% in 2000
US average: 88.5%
Graduate degree
9.4%
+1.1 ptssince 2000
from 8.2% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
22.6 min
+66%since 2000
from 13.6 min in 2000
US average: 26.9
Drive alone to work
80.0%
−8.3 ptssince 2009
from 88.3% in 2009
US average: 75.1%
No vehicle available
3.9%
+0.2 ptssince 2009
from 3.7% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
1.8%
−4.4 ptssince 2011
from 6.2% in 2011
US average: 5.4%
Labor force participation
59.3%
−2.3 ptssince 2011
from 61.6% in 2011
US average: 63.4%
Management & professional
37.5%
−30.6 ptssince 2009
from 68.1% in 2009
US average: 39.3%
Section 08

People & community

Male
45.9%
−3.1 ptssince 2009
from 49.0% in 2009
Female
54.1%
+3.1 ptssince 2009
from 51.0% in 2009
Foreign born
4.6%
+0.7 ptssince 2009
from 4.0% in 2009
US average: 13.5%
Uninsured
3.0%
−93.6 ptssince 2013
from 96.6% in 2013
US average: 8.8%
Drill deeper

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Compare South Dennis to nearby cities

SOUTH DENNIS VS
South Yarmouth
Income$82,188+33%
Home value$541,700+68%
Population11,552+268%
SEE FULL COMPARISON →
SOUTH DENNIS VS
Barnstable
Income$91,982+48%
Home value$602,500+86%
Population50,101+1498%
SEE FULL COMPARISON →
SOUTH DENNIS VS
Nantucket
Income$148,017+139%
Home value$1,465,300+353%
Population10,017+220%
SEE FULL COMPARISON →
SOUTH DENNIS VS
New Bedford
Income$56,981−8%
Home value$357,300+11%
Population101,834+3148%
SEE FULL COMPARISON →
Frequently asked

How many people live in South Dennis, Massachusetts?

South Dennis, Massachusetts has about 3,899 residents according to the 2020 American Community Survey.

What is the median household income in South Dennis, Massachusetts?

The typical household in South Dennis, Massachusetts earns about $61,971 a year. Half of households make more than that, and half make less.

Is South Dennis, Massachusetts expensive?

In South Dennis, Massachusetts, the median home is worth about $323,300, and the typical rent is about $1,377 a month.

How educated are people in South Dennis, Massachusetts?

About 30.8% of adults age 25 and over in South Dennis, Massachusetts hold a bachelor's degree or higher.

What is the poverty rate in South Dennis, Massachusetts?

About 7.8% of people in South Dennis, Massachusetts live below the federal poverty line.

Has South Dennis, Massachusetts grown since 1990?

Yes, South Dennis, Massachusetts has grown since 1990. The population has added about 340 residents, a change of about 10 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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