Seabrook Population

1970–2026

14,060

2026 projection

3.5% since 2020 (increase)

05K10K15K20K197019801990200020102020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Seabrook. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202614,060+860.62%
202513,974+460.33%
202413,928+1020.74%
202313,826+430.31%
202213,783+2071.52%
202113,576-80.06%
202013,584-4343.10%
201914,018-1080.76%
201814,126+5333.92%
201713,593-400.29%

Showing 10 of 21 years.

Seabrook Demographics

42.2median age

Median age

Female38.7 yrs
Male43 yrs

Adults

11,083
1,812 seniors · 16%9,271 other adults

Sex

Female 48.5% · 6,673Male 51.5% · 7,095

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 138 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Seabrook Income

$102,726median household income

Median household income

$102,726

Half of households earn more, half earn less

Median earnings

$72,693

Typical yearly pay for a worker 25 or older.

Poverty rate

6.5%

About 1 in 15 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Seabrook Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%45%52%
Never married34%35%32%
Divorced15%17%12%
Widowed2%<1%4%
Separated<1%2%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201