Seabrook

County:: Rockingham County
County Seat:: No
Area (mi²):: 8.977
State:: New Hampshire

Seabrook is located in Rockingham County, New Hampshire. Seabrook has a 2025 population of 8,355. Seabrook is currently declining at a rate of -0.35% annually and its population has decreased by -0.62% since the most recent census, which recorded a population of 8,407 in 2020.

The average household income in Seabrook is $112,448 with a poverty rate of 10.95%.The median age in Seabrook is 53.2 years: 49.3 years for males, and 54.6 years for females.

Demographics

The racial composition of Seabrook includes 89.46% White, and smaller percentages for Black or African American, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	7,539	89.46%
Two or more races	763	9.05%
Black or African American	64	0.76%
Asian	61	0.72%

Seabrook Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Seabrook's average per capita income is $51,800. Household income levels show a median of $87,021. The poverty rate stands at 10.95%.

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	$111,944	-
Families	$104,220	$141,263
Households	$87,021	$112,448
Non Families	$36,959	$61,736

$51,800

Average Income

$87,021

Median Household Income

10.95%

Poverty Rate