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, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Other 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%
Native American	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 $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