Seabrook, MA demographics:
population, income, and more

Total population
530
-2.8% year-over-year change
Median household income
$142,031/yr
% year-over-year change
Housing units
370
-1.3% year-over-year change

Seabrook population

How many people live in Seabrook

Seabrook is home to 530 residents, according to the most recent Census data. Gender-wise, 49.2% of Seabrook locals are male, and 50.8% are female.

Total population
530
-2.8% year-over-year change
Gender ratio
Male
49.2%
261
Female
50.8%
269
Value Percent YoY change
Male 261 49.2% 4.4%
Female 269 50.8% -8.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Seabrook is 62, with the population distributed as follows: about 5.5% are children under 15, then 6% are in the 15 to 24 age group. Adults between 25 and 44 make up 8.1% of the population, while another 40.6% fall into the 45 to 64 bracket. Finally, around 39.8% are 65 or older.

Median age
61.5
Age breakdown
Under 15
5.5%
15 to 24
6%
25 to 44
8.1%
45 to 64
40.6%
Over 65
39.8%
Value Percent YoY change
Under 15 29 5.5% 7.4%
15 to 24 32 6% -38.5%
25 to 44 43 8.1% 48.3%
45 to 64 215 40.6% -6.1%
Over 65 211 39.8% 1.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Seabrook, 97.9% of the population are US-born citizens, while 2.1% have gained naturalized citizenship. There’s also a share of 5.3% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.9%
Non-U.S.-born citizens
2.1%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 519 97.9% 5.5%
Non-U.S.-born citizens 11 2.1% -79.2%
Racial breakdown
White
94.7%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.3%
Other
0%
Value Percent
White 502 94.7%
Two or more races 28 5.3%

Households in Seabrook

A peek inside Seabrook households

Seabrook has 247 households, with an average of 2 members in each. Of these, 82.6% are families, while the remaining 17.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
247
0.0% year-over-year change
Average people per household
2
Non-family households
43
Family households
204
Value Percent YoY change
Non-family households 43 17.4% -6.5%
Family households 204 82.6% 1.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Seabrook

The housing landscape of Seabrook

Seabrook's housing consists of 370 units, with 100% being detached single-family homes ideal for those wanting space.

Housing units
370
-1.3% year-over-year change
Housing types
Value Percent
1 unit, detached 370 100%
Homes built since 2020
8
% year-over-year change

The age of buildings in Seabrook

In Seabrook, the median construction year is 1988. Most development happened in the second half of the 20th century. Then, 5.1% of homes were added from 2000 to 2009, 5.7% between 2010 and 2019, and 2.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built between 1970 and 1979 10 2.7% N/A
Built between 1980 and 1989 224 60.5% -6.7%
Built between 1990 and 1999 88 23.8% 0.0%
Built between 2000 and 2009 19 5.1% -34.5%
Built between 2010 and 2019 21 5.7% 16.7%
Built in 2020 or later 8 2.2% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Seabrook occupancy rates

Out of the 247 occupied housing units in Seabrook, 95.6% are owner-occupied, while 4.4% are lived in by tenants. Meanwhile, 33.2% of all homes on the local market sit vacant.

Occupied housing units
247
0.0% year-over-year change
Occupancy breakdown
Renter occupied
11
Owner occupied
236
Value Percent YoY
change
Renter occupied 11 4.4% 0.0%
Owner occupied 236 95.6% 0.0%
Unoccupied housing units
33.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Seabrook housing costs

Median housing costs per month
$2,236/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Seabrook

Seabrook education at a glance

About 16.3% of the population in Seabrook went to high school, while 18.3% pursued college studies. Another earned an associate degree and 27.1% hold a bachelor’s. Meanwhile, 36% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 11 2.2% 0.0%
High school diploma 80 16.3% -44.4%
College diploma 90 18.3% 8.4%
Bachelor's degree 133 27.1% 0.8%
Graduate degree 177 36% 52.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Seabrook

How much people earn in Seabrook

The average annual household income in Seabrook was $169,660 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +16% change from the previous year.

Average household income in Seabrook
$169,660/year
16.0% year-over-year change
Median household income in Seabrook
$142,031/year
% year-over-year change

Seabrook income by age

Those with someone between 45 and 64 in charge, often well established professionally, earn $213,813 overall. Overall, 100% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
45 - 64 $213,813 2.0%
Over 65 $83,077 16.8%
Above poverty level
530
Below poverty level
0
Value Percent YoY
change
Above poverty level 530 100% -0.9%

Employment in Seabrook

Workforce and job types in Seabrook

The job market in Seabrook is powered by 270 working residents, spread across a range of industries and roles. 81.8% of the working population are employed in professional or administrative positions, while 18.2% are in hands-on or service-based jobs. Also, 1.8% run their own businesses, 76.3% are employed by private companies, and 13% work in the public sector.

Workforce demographics

Working population
270
-8.2% year-over-year change
White collar
221
Blue collar
49
Value Percent YoY change
White collar 221 81.8% -3.9%
Blue collar 49 18.2% -23.4%
Employer type
Self employees
1.8%
Private companies
76.3%
Governmental workers
13%
Not for profit companies
8.9%
Value Percent YoY change
Self employees 5 1.8% -84.8%
Private companies 206 76.3% 24.9%
Governmental workers 35 13% -58.3%
Not for profit companies 24 8.9% 100.0%

Transportation in Seabrook

How people get around in Seabrook

Commuting methods vary: 63% of residents travel by personal vehicle and 2.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 162 63% -35.2%
Walk 6 2.3% 0.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

Explore more communities

FAQs about Seabrook demographics 

What is the total population of Seabrook?

Seabrook has a total population of 530 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -2.8% compared to a year ago.

What is the gender ratio in Seabrook?

The gender ratio in Seabrook is as follows:
  • 49.2% males (261 residents)
  • 50.8% females (269 residents)

What is the median age in Seabrook?

The median age in Seabrook is 61.5.

What is the age distribution of the population in Seabrook?

The age distribution in Seabrook is as follows:
  • Under 15: 5.5% (29 residents)
  • Ages 15-24: 6% (32 residents)
  • Ages 25-44: 8.1% (43 residents)
  • Ages 45-64: 40.6% (215 residents)
  • Over 65: 39.8% (211 residents)

What is the racial and ethnic makeup of Seabrook?

The racial and ethnic makeup of Seabrook is as follows:
  • White: 94.7% (502 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 5.3% (28 residents)
  • Other: 0% (0 residents)

What percentage of the population in Seabrook are U.S.-born citizens?

U.S.-born citizens represent 97.9% of the population in Seabrook.

How many housing units are there in Seabrook?

There are 370 housing units in Seabrook, reflecting a -1.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Seabrook and what is the average household size?

Seabrook has a total of 247 households, with an average of 2 people in each.

What is the median household income in Seabrook?

Seabrook has a median household income of $142,031, representing a % shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Seabrook?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 81.8% (221 residents)
  • Blue-collar workers: 18.2% (49 residents)

Places of employment:
  • Self-employed: 1.8% (5 residents)
  • Private companies: 76.3% (206 residents)
  • Governmental workers: 13% (35 residents)
  • Not-for-profit companies: 8.9% (24 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025