City profile · Massachusetts · Census ACS 2023

South Dennis, MA

Population, income, housing, safety, climate and schools for South Dennis - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

3,190
Residents
$86,500
Median income
$454,400
Median home
$2,422
Median rent (state)

South Dennis - the verdict

South Dennis ranks in the 68th percentile for household income nationally, out of every US city with at least 1,000 residents. Source: Census ACS.

68th
percentile, household income
82nd
percentile, home value
91st
percentile, median rent
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: South Dennis, MA

3,190 people live in South Dennis, Massachusetts - a small town by U.S. Census Bureau ACS 2023 estimates. The typical household in South Dennis brings in $86,500 a year, above the median for U.S. cities on this measure, with a poverty rate of 2.4%. Typical homes in South Dennis are valued around $454,400, and the median resident age is 55.2 years. About 37.1% of adults hold a bachelor's degree or higher, while 59.2% of working-age residents are in the labor force.

Massachusetts carries a cost-of-living premium: on BEA's 100-equals-national-average cost index, Massachusetts scores 105.8 (Above Average), per the 2024 Regional Price Parities release. HUD Fair Market Rent for a typical two-bedroom in this state is $2,422 per month. EIA 2023 residential energy data puts Massachusetts's average monthly utility costs around $330 (state average). Workers in South Dennis report an average commute of 21.5 minutes, with 81.0% driving alone and 6.1% working from home. FEMA's National Risk Index rates natural-hazard exposure at 89.1 out of 100 (Very High).

Population

3,190 residents

Census ACS 2023 - Massachusetts

Median Household Income

$86,500 /yr

Poverty 2.4%

Cost of Living Index (state)

105.8 (US=100)

Above Average - BEA RPP 2024, Massachusetts average

How does South Dennis compare to other US cities?

South Dennis measured against every US city with 1,000+ residents, computed live from the same Census and FBI data shown throughout this page.

Household income 68% higher than other cities
Home value 82% pricier than other cities
Median rent 91% pricier than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

How we calculate these percentiles & ranks

Each percentile compares South Dennis against every qualifying US city; each in-state rank narrows that to Massachusetts only. Full formula and direction notes: methodology.

Massachusetts-relative analysis

Poverty Rate sits close to the middle of Massachusetts's city distribution

Among the 247 Massachusetts cities PlainCities tracks with reported poverty rate data, South Dennis ranks #162 - the 33rd percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares South Dennis only against its own state's cities, not the full US field.

Median Household Income
#146 of 233
37th percentile in Massachusetts
Median Gross Rent
#79 of 247
60th percentile in Massachusetts
Median Home Value
#142 of 240
41st percentile in Massachusetts
Poverty Rate
#162 of 247
33rd percentile in Massachusetts
Bachelor's Degree or Higher
#166 of 247
33rd percentile in Massachusetts

Ranked by raw value (highest first); a higher rank is not automatically "better" for every measure, see each metric's own context above. This is a comparison within Massachusetts only, not a livability score. See the methodology for the source and calculation.

68thIncome percentile

68th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How South Dennis's home value compares nationally

Median home value vs. every US city (population 1,000+)

$454,400 18th percentile more affordable than 18% of 15,600 US cities

$0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). Below this entry. $100,000–$125,000: 1,516 US cities (10%). Below this entry. $125,000–$150,000: 1,170 US cities (8%). Below this entry. $150,000–$175,000: 1,278 US cities (8%). Below this entry. $175,000–$200,000: 1,229 US cities (8%). Below this entry. $200,000–$225,000: 1,035 US cities (7%). Below this entry. $225,000–$250,000: 976 US cities (6%). Below this entry. $250,000–$275,000: 754 US cities (5%). Below this entry. $275,000–$300,000: 712 US cities (5%). Below this entry. $300,000–$325,000: 521 US cities (3%). Below this entry. $325,000–$350,000: 526 US cities (3%). Below this entry. $350,000–$375,000: 465 US cities (3%). Below this entry. $375,000–$400,000: 393 US cities (3%). Below this entry. $400,000–$425,000: 317 US cities (2%). Below this entry. $425,000–$450,000: 300 US cities (2%). Below this entry. $450,000–$475,000: 307 US cities (2%). This entry sits in this band. $475,000–$500,000: 250 US cities (2%). Above this entry. $500,000–$525,000: 160 US cities (1%). Above this entry. $525,000–$550,000: 156 US cities (1%). Above this entry. $550,000–$575,000: 172 US cities (1%). Above this entry. $575,000–$600,000: 172 US cities (1%). Above this entry. $600,000–$625,000: 163 US cities (1%). Above this entry. $625,000–$650,000: 167 US cities (1%). Above this entry. $650,000–$675,000: 135 US cities (1%). Above this entry. $675,000–$700,000: 101 US cities (1%). Above this entry. $700,000–$725,000: 95 US cities (1%). Above this entry. $725,000–$750,000: 71 US cities (0%). Above this entry. $750,000–$775,000: 65 US cities (0%). Above this entry. $775,000–$800,000: 70 US cities (0%). Above this entry. $800,000–$825,000: 57 US cities (0%). Above this entry. $825,000–$850,000: 67 US cities (0%). Above this entry. $850,000–$875,000: 60 US cities (0%). Above this entry. $875,000–$900,000: 58 US cities (0%). Above this entry. $900,000–$925,000: 47 US cities (0%). Above this entry. $925,000–$950,000: 37 US cities (0%). Above this entry. $950,000–$975,000: 31 US cities (0%). Above this entry. $975,000–$1,000,000: 470 US cities (3%). Above this entry. $1,000,000–$1,025,000: 0 US cities (0%). Above this entry. South Dennis $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Income distribution context

Household income distribution - South Dennis, MA South Dennis, MA's reported median household income shown against the U.S. national quintile-share pattern (not South Dennis, MA-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution South Dennis, MA median $86,500/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
South Dennis, MA's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for South Dennis, MA. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 37.1%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 2.4%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 59.2%

Census ACS S2301, share of working-age residents in the labor force

Population
3,190
Median Income
$86,500
Median Home Value
$454,400
Median Age
55.2
Poverty Rate
2.4%
Labor force participation
59.2%
Bachelor's Degree+
37.1%

Commute Patterns

How workers travel to work, Census ACS 2023

Average Commute Time
21.5 minutes
Drive Alone
81.0%
Carpool
12.9%
Public Transit
0.0%
Walk
0.0%
Work from Home
6.1%

Based on 1,662 workers 16 and over.

Monthly Utility Costs

State-average estimates for Massachusetts - EIA 2023 residential energy data

Electricity
$160
avg/month
Natural Gas
$110
avg/month
Water & Sewer
$60
avg/month
Total Utilities
$330
estimated/month

Estimates reflect Massachusetts state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a Massachusetts state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county South Dennis sits in

Cost of Living Index
105.8
Above Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$2,422/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
89.1 / 100
Very High
FEMA NRI composite score (county)

Similar Cities in Massachusetts

Hopkinton
3,142 people
South Duxbury
3,272 people
Ocean Grove
3,099 people
Cordaville
3,076 people
Monument Beach
3,067 people
Nahant
3,328 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to South Dennis's 3,190 residents (Census ACS 5-Year 2023).

Old Mystic, CT
3,189 people
Rockwood, MI
3,189 people
Hoosick Falls, NY
3,189 people
Washington Heights, NY
3,189 people
Wesleyville, PA
3,189 people
Orchard City, CO
3,193 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to South Dennis's $86,500 (Census ACS 5-Year 2023, table B19013).

Orange Blossom, CA
$86,500 median income
Fruitville, FL
$86,500 median income
Montgomery, GA
$86,500 median income
Rollingstone, MN
$86,500 median income
Lesslie, SC
$86,500 median income
Cavour, SD
$86,500 median income

Race & Ethnicity Composition

Race and ethnicity - South Dennis, MA Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition South Dennis, MA - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 91.5% ETHNICITY, Hispanic or Latino (any race) 0.7% White 91.5% Black or African American 4.0% Asian 0.5% American Indian 0.0% Native Hawaiian 0.0% Some other race 3.2% Two or more races 0.8% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How South Dennis compares to nearby Massachusetts cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
South Dennis (this city) 3,190 $86,500
Hopkinton 3,142 $173,750
South Duxbury 3,272 $206,111
Ocean Grove 3,099 $97,109
Census ACS 5-year FIPS MA OMB Bulletin 23-01

What do people ask about South Dennis, MA?

What is the population of South Dennis, MA? +

3,190 people live in South Dennis, MA according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in South Dennis, MA? +

The median household income in South Dennis is $86,500 per year, based on Census ACS 2023 data.

What is the cost of living in South Dennis? +

BEA does not publish a city-level cost-of-living figure for South Dennis; the closest available measure is the Massachusetts state average, a cost of living index of 105.8 (U.S. average = 100), rated "Above Average" based on BEA Regional Price Parities 2024 data. Costs within Massachusetts vary by metro area.

What is the median home value in South Dennis, MA? +

South Dennis's median home value sits at $454,400, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities

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Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.