Seabrook

County:: Barnstable County
County Seat:: No
Area (mi²):: 0.352
State:: Massachusetts

Seabrook is a CDP located in Barnstable County, Massachusetts. Seabrook has a 2025 population of 630. Seabrook is currently growing at a rate of 1.94% annually and its population has increased by 21.15% since the most recent census, which recorded a population of 520 in 2020.

The average household income in Seabrook is $146,249 with a poverty rate of 0.93%. The median age in Seabrook is 59 years: 57.9 years for males, and 59.6 years for females.

Demographics

The racial composition of Seabrook includes 96.7% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	527	96.7%
Two or more races	18	3.3%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Seabrook Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Seabrook's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 0.93%.

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
Families	$116,477	$156,735
Non Families	$64,783	$100,430
Households	-	$146,249
Married Families	-	-

$0

Average Income

$0

Median Household Income

0.93%

Poverty Rate