South Yarmouth, Massachusetts Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of South Yarmouth, Massachusetts is 11,642 as of the 2023 American Community Survey, making it the 85th-largest city in Massachusetts. The median household income is $79,638, the median home value is $465,100, and the median age is 55.0.
11,642
Population
1674
People / sq mi
$79,638
Median Income
$465,100
Median Home Value
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South Yarmouth covers 7.0 sq mi of land at 1674 people per square mile.
About South Yarmouth, MA
Age is the most distinctive thing about South Yarmouth: a median age of 55.0, older than the national median. South Yarmouth is a city in Massachusetts with a population of 11,642.
The typical household here earns about $79,638, near the US median of $78,538. The poverty rate is 6.3%, below the national 12.4%. A typical home is worth $465,100, with typical rent around $1,665.
33.1% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. Home-based work is uncommon, at 4.6%, below the national 14.0%, and the average commute runs about 25 minutes each way.
The age structure shapes everything downstream in South Yarmouth — from housing demand to the mix of working-age earners reflected in the income figures above.
Race & Ethnicity
| White | 78.5% |
| Black or African American | 4.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$79,638
Median Household Income
$50,085
Per Capita Income
6.3%
Poverty Rate
4.6%
Unemployment Rate
Housing
$465,100
Median Home Value
$1,665
Median Rent
77.9%
Owner-Occupied
Education
94.1%
High School+
33.1%
Bachelor's+
Commute
2.6%
Drive Alone
81.6%
Public Transit
4.6%
Work From Home
24.7 min
Avg Commute
Community Profile
19.8%
Foreign Born
80.7%
Non-English at Home
7.3%
Veterans
17.4%
With Disability
96.0%
Health Insurance
95.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 24.0% |
| Education, Health Care & Social Services | 13.5% |
| Finance, Insurance & Real Estate | 10.1% |
| Construction | 8.9% |
| Arts, Entertainment & Food Services | 7.0% |
| Information | 5.7% |
| Retail Trade | 3.5% |
| Manufacturing | 3.5% |
| Transportation & Warehousing | 0.9% |
| Public Administration | 0.8% |
| Agriculture & Mining | 0.8% |
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Frequently Asked Questions
South Yarmouth, Massachusetts has a population of 11,642 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 85th-largest city in Massachusetts.
The median household income in South Yarmouth, Massachusetts is $79,638, with 6.3% of residents living below the federal poverty level.
The median home value in South Yarmouth, Massachusetts is $465,100, with median monthly rent at $1,665 and a homeownership rate of 77.9%.
The median age in South Yarmouth, Massachusetts is 55.0 years. The population is 47.8% male and 52.2% female.
South Yarmouth Cdp, MA Climate
South Yarmouth Cdp, MA has an average annual temperature of 10°C (50°F) and receives about 1107 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10°C
Avg Temp
1107
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 30° | 93 mm |
| February | 0° / 31° | 92 mm |
| March | 3° / 38° | 93 mm |
| April | 8° / 46° | 96 mm |
| May | 13° / 55° | 90 mm |
| June | 18° / 64° | 80 mm |
| July | 21° / 70° | 76 mm |
| August | 21° / 69° | 84 mm |
| September | 17° / 63° | 88 mm |
| October | 12° / 53° | 95 mm |
| November | 7° / 45° | 112 mm |
| December | 2° / 36° | 108 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit South Yarmouth Cdp, MA
The most comfortable months to visit South Yarmouth Cdp, MA are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 25°C high). The coldest is January (near -5°C low). November is usually the wettest month.
Where to stay near South Yarmouth
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.