South Yarmouth

County:: Barnstable County
County Seat:: No
Area (mi²):: 6.956
State:: Massachusetts

South Yarmouth is a CDP located in Barnstable County, Massachusetts. South Yarmouth has a 2025 population of 11,983. South Yarmouth is currently growing at a rate of 0.49% annually and its population has increased by 13.07% since the most recent census, which recorded a population of 10,598 in 2020.

The average household income in South Yarmouth is $106,726 with a poverty rate of 9.27%. The median age in South Yarmouth is 55 years: 50.9 years for males, and 57.6 years for females.

Demographics

The racial composition of South Yarmouth includes 78.52% White, 4.75% Black or African American, 4.32% Asian, 3.81% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	9,141	78.52%
Two or more races	1,001	8.6%
Black or African American	553	4.75%
Asian	503	4.32%
Other race	444	3.81%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

South Yarmouth Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Yarmouth's average per capita income is $48,886. Household income levels show a median of $79,638. The poverty rate stands at 9.27%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$106,276	-
Families	$95,430	$128,654
Households	$79,638	$106,726
Non Families	$51,060	$67,706

$48,886

Average Income

$79,638

Median Household Income

9.27%

Poverty Rate