South Yarmouth is home to 11,552 people in Massachusetts. At a median age of 52.4, this is an older place than the country as a whole. Owners hold 80% of the housing stock. Home values have more than tripled since 2000, reaching $541,700. Households here earn about 21% less than in Massachusetts as a whole. There are 1,661 people per square mile.
At a glance
Average income
median household income $82,188, near the US median
US median: $82,259
Older
median age 52.4
US median: 38.9
Average education
34% hold a bachelor's degree
US average: 36%
Less affordable
home values up 108%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about South Yarmouth
What changed most since 1990
Black share0.9% → 7.3%(+6.4 pts)US over the same years: +0.2 pts
Homes owned by their occupants73.7% → 80.2%(+6.4 pts)US over the same years: +0.9 pts
South Yarmouth's population equals 5.0% of Barnstable County's. Its number of people who work from home equals 1.8% of the county's. Its number of foreign-born residents equals 9.5% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)3%(16)
US avg: 26.4%
Gulf War (1990s)4.5%(24)
US avg: 24.3%
Vietnam era46.4%(249)
US avg: 33.1%
Korean War11.4%(61)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 537 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
South Yarmouth, decade by decade
South Yarmouth population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
10,358
$60,515
$345,130
19.1%
7.6
2000
11,603
$68,573
$260,679
23.0%
14.5
2010
11,092
$63,868
$472,714
25.0%
22.0
2020
11,703
$81,701
$421,547
28.9%
44.3
2024
11,552
$82,188
$541,700
34.4%
49.7
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in South Yarmouth, Massachusetts?
South Yarmouth, Massachusetts has about 11,552 residents according to the 2024 American Community Survey.
What is the median household income in South Yarmouth, Massachusetts?
The typical household in South Yarmouth, Massachusetts earns about $82,188 a year. Half of households make more than that, and half make less.
Is South Yarmouth, Massachusetts expensive?
In South Yarmouth, Massachusetts, the median home is worth about $541,700, and the typical rent is about $1,806 a month.
How educated are people in South Yarmouth, Massachusetts?
About 34.4% of adults age 25 and over in South Yarmouth, Massachusetts hold a bachelor's degree or higher.
What is the poverty rate in South Yarmouth, Massachusetts?
About 11.6% of people in South Yarmouth, Massachusetts live below the federal poverty line.
Has South Yarmouth, Massachusetts grown since 1990?
Yes, South Yarmouth, Massachusetts has grown since 1990. The population has added about 1,194 residents, a change of about 12 percent over that period.
