Housing data for South Dennis, MA
South Dennis, MA has an estimated 3,135 residents and 2,616 homes (US Census Bureau, 2020–2024 American Community Survey).
It is an unincorporated community in Barnstable County.
17.3% of households rent.
The median gross rent is $2,003 a month.
Figures last updated on .
- Residents
- 3,135 (±428)
- Housing units
- 2,616 (±265)
- Households that rent
- 17.3%
- Median gross rent
- $2,003
- Residents since 2015–2019
- −7.6%
What stands out in South Dennis
Median real estate taxes: $2,439 (±$170) in South Dennis, lower than in Barnstable County ($4,239).
Households without a vehicle: 1.2% (±1.4 points) in South Dennis, lower than in Barnstable County (5.4%).
Working from home: 9.5% (±6.2 points) in South Dennis, lower than in Barnstable County (16.0%).
Homes in buildings of 5 or more units: 3.2% (±2.0 points) in South Dennis, lower than in Barnstable County (6.9%).
Housing in South Dennis at a glance
- Median rent: $2,003 median gross rent a month (Small sample: wide margin of error)
- Rent by bedrooms: $2,083 median gross rent, 2 bedrooms
- Rent burden: 72.4% of renters pay 30% or more of income
- Renters and owners: 17.3% of households rent
- Income and affordability: $88,411 median household income
- Home values: $495,700 median home value
- Homeowner costs: $1,945 median monthly cost with a mortgage
- Property taxes: $2,439 median real estate taxes a year
- Types of homes: 3.2% of homes are in buildings of 5 or more units
- Bedrooms: 62.5% of homes have 3 or more bedrooms
- Age of homes: 63.7% of homes were built before 1980
- Vacancy rate: 12.1% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 74.2% heat with utility gas
- Commute and cars: 24.7 minutes average trip to work
- Growth: −7.6% residents since 2015–2019
- How long people stay: 14.7% moved in since 2020
- Crowding and facilities: 0.0% of homes have more than 1 person per room (Small sample: wide margin of error)
South Dennis against Barnstable County, its state and the nation
| South Dennis | Barnstable County | Massachusetts | United States | |
|---|---|---|---|---|
| Residents | 3,135 (±428) | 231,668 (exact) | 7,044,056 (exact) | 334,922,499 |
| Housing units | 2,616 (±265) | 166,215 (±74) | 3,030,406 (±453) | 143,775,355 |
| Households that rent | 17.3% (±7.9 points) | 18.9% (±1.0 points) | 37.5% (±0.3 points) | 34.8% |
| Median gross rent | $2,003 (±$1,005) | $1,678 (±$60) | $1,762 (±$9) | $1,413 |
| Median household income | $88,411 (±$12,702) | $95,241 (±$2,510) | $103,960 (±$527) | $80,734 |
| Median home value | $495,700 (±$36,050) | $629,000 (±$7,027) | $562,100 (±$2,169) | $332,700 |
| Median real estate taxes (a year) | $2,439 (±$170) | $4,239 (±$69) | $5,992 (±$18) | $3,119 |
| Built before 1980 | 63.7% (±10.1 points) | 56.4% (±1.4 points) | 67.4% (±0.4 points) | 49.7% |
| Average commute | 24.7 minutes (±3.9) | 24.8 minutes (±1.0) | 29.1 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 98.1% (±2.0 points) | 94.3% (±0.5 points) | 92.8% (±0.1 points) | 91.0% |
| Median age of residents | 57.6 years (±2.7) | 55.4 years (±0.1) | 40.0 years (±0.1) | 38.9 years |
South Dennis covers 4.6 square miles of land, about 689 residents per square mile (Census Bureau Gazetteer).
How South Dennis has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 3,393 (±372) | 3,135 (±428) | −7.6% | Not a measurable change |
| Housing units | 2,729 (±193) | 2,616 (±265) | −4.1% | Not a measurable change |
| Median gross rent | $1,374 (±$143) | $2,003 (±$1,005) | +45.8% | No measurable change after inflation |
| Median home value | $314,400 (±$19,621) | $495,700 (±$36,050) | +57.7% | Up after inflation |
| Median household income | $59,963 (±$10,186) | $88,411 (±$12,702) | +47.4% | No measurable change after inflation |
| Median owner cost with a mortgage | $1,638 (±$207) | $1,945 (±$194) | +18.7% | No measurable change after inflation |
| Median real estate taxes | $1,733 (±$162) | $2,439 (±$170) | +40.7% | Up after inflation |
| Households that rent | 23.8% (±6.0 points) | 17.3% (±7.9 points) | −6.5 percentage points | Not a measurable change |
| Rental vacancy rate | 6.3% (±9.9 points) | 12.1% (±18.0 points) | +5.8 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in Barnstable County
South Dennis has no police department of its own in the FBI’s figures, so this is the figure for Barnstable County as a whole.
In 2025, the police departments that report for Barnstable County recorded 248 violent and 660 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in South Dennis
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 02660 | 54% | 6,381 | $1,365 | $559,600 | $93,386 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near South Dennis
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| East Dennis | 2.2 mi | $719 | $694,000 | 13.4% |
| Northwest Harwich | 2.4 mi | $2,486 | $665,100 | 10.5% |
| Dennis Port | 2.6 mi | $1,556 | $523,900 | 31.3% |
| West Dennis | 2.7 mi | $1,593 | $644,800 | 24.6% |
| Dennis (community) | 3.0 mi | $1,199 | $944,500 | 14.2% |
| Yarmouth Port | 3.6 mi | $1,917 | $604,900 | 8.4% |
| South Yarmouth | 3.6 mi | $1,806 | $541,700 | 19.8% |
| Harwich | 4.2 mi | $2,017 | $658,600 | 15.2% |
Places in Massachusetts most like South Dennis
| Place | Median gross rent | Median home value | Median household income | Households that rent |
|---|---|---|---|---|
| Yarmouth | $1,721 | $551,800 | $86,039 | 17.7% |
| Harwich | $2,017 | $658,600 | $96,966 | 15.2% |
| Sheffield | $1,837 | $409,400 | $92,120 | 17.7% |
| West Bridgewater | $1,921 | $503,800 | $123,406 | 17.9% |
| Westminster | $1,843 | $422,000 | $106,331 | 12.4% |
| Barnstable Town | $1,917 | $602,500 | $91,982 | 24.3% |
Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Massachusetts.
HUD Fair Market Rent for South Dennis, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $1,889 | $1,902 | $2,488 | $3,121 | $3,721 |
HUD income limits for South Dennis, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $29,650 | $49,450 | $79,100 |
| 2 people | $33,900 | $56,500 | $90,400 |
| 3 people | $38,150 | $63,550 | $101,700 |
| 4 people | $42,350 | $70,600 | $112,950 |
| 5 people | $45,750 | $76,250 | $122,000 |
| 6 people | $49,150 | $81,900 | $131,050 |
| 7 people | $52,550 | $87,550 | $140,100 |
| 8 people | $55,950 | $93,200 | $149,100 |
These are the limits HUD sets for its housing programs in the Barnstable Town, MA MSA, where HUD’s median family income for fiscal year 2026 is $123,600.
A program can use its own limits; tax-credit and local programs often do.
South Dennis is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.
It lies inside Dennis, whose figures include it.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about South Dennis
How much is a one-bedroom apartment in South Dennis?
The median gross rent for a one-bedroom home in South Dennis, MA is $675 (±$459) a month (2020–2024 American Community Survey).
Are renters in South Dennis rent-burdened?
72.4% of renting households in South Dennis pay 30% or more of their income in gross rent, the share housing researchers usually call rent-burdened (2020–2024 American Community Survey).
How many renters are there in South Dennis?
South Dennis has an estimated 276 (±138) renting households, 17.3% of its occupied homes (2020–2024 American Community Survey).
What is the median household income in South Dennis?
The median household income in South Dennis is $88,411 (±$12,702) a year (2020–2024 American Community Survey).
What is the average home value in South Dennis, MA?
The Census Bureau publishes the median: $495,700 (±$36,050) for owner-occupied homes in South Dennis (2020–2024 American Community Survey).
What is the average mortgage payment in South Dennis?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in South Dennis, MA is $1,945 (±$194) a month, including taxes, insurance and utilities.
Is South Dennis growing?
In South Dennis, the number of residents went from 3,393 in 2015–2019 to 3,135 in 2020–2024 (−7.6%), not a measurable change.
What ZIP codes are in South Dennis?
The ZIP code that covers South Dennis is 02660.
What is the median rent in ZIP code 02660?
The median gross rent in ZIP Code Tabulation Area 02660 is $1,365 (±$694) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Total Population (B01003), 2015–2019 ACS 5-year estimates — South Dennis CDP, Massachusetts
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — South Dennis CDP, Massachusetts
- HUD Fair Market Rents, fiscal year 2027: Barnstable Town, MA MSA
- HUD Income Limits, fiscal year 2026: Barnstable Town, MA MSA
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for South Dennis CDP, Massachusetts (place:63655, in state:25).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .