Seabrook, MA Demographics

A map of Seabrook's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	502	419	94.7%	93.5%
Multiracial	28	16	5.3%	3.6%
Black	0	3	0.0%	0.7%
Asian	0	1	0.0%	0.2%
Hispanic	0	4	0.0%	0.9%
Native American/Other	0	5	0.0%	1.1%

Seabrook, Massachusetts has an estimated population of 530, a large increase from the 448 recorded in the 2020 Census. The population is 94.7% White, 5.3% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Seabrook, with one dot drawn for each person counted by the Census, color-coded by race.

Seabrook has become less racially diverse since the 2020 Census. It is considerably less diverse than Massachusetts overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Seabrook, that probability was 12.4% in 2020 and 10.0% in the most recent ACS estimates.

Seabrook is ranked the 238th most populous place in Massachusetts, out of 248 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Seabrook was ranked the 240th most populous place in the 2020 Census.

Seabrook's White Population

502 residents of Seabrook, or 94.7% of the population, identify as White. The share of White residents in Seabrook is significantly higher than in Massachusetts overall, where 66.6% of the population is White. Seabrook ranks 17th statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's White population has grown by an estimated 19.8%. White residents' share of Seabrook's population has increased from 93.5% to 94.7%.

Seabrook is less White than neighboring Monomoscoy Island (100% White), Seconsett Island (100% White), New Seabury (94.9% White), Popponesset (96.3% White), and Popponesset Island (100% White).

Seabrook's Black Population

0 residents of Seabrook, or 0.0% of the population, identify as Black. The share of Black residents in Seabrook is lower than in Massachusetts overall, where 6.4% of the population is Black. Seabrook ranks 201st statewide in terms of Black residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's Black population has declined by an estimated 100.0%. Black residents' share of Seabrook's population has decreased from 0.7% to 0.0%.

Seabrook's Asian Population

0 residents of Seabrook, or 0.0% of the population, identify as Asian. The share of Asian residents in Seabrook is lower than in Massachusetts overall, where 7.3% of the population is Asian. Seabrook ranks 237th statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's Asian population has declined by an estimated 100.0%. Asian residents' share of Seabrook's population has remained roughly unchanged at 0.0%.

Seabrook is less Asian than neighboring Popponesset (1.1% Asian).

Seabrook's Hispanic Population

0 residents of Seabrook, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Seabrook is considerably lower than in Massachusetts overall, where 13.3% of the population is Hispanic. Seabrook ranks 245th statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Seabrook's population has decreased from 0.9% to 0.0%.

Seabrook is less Hispanic than neighboring New Seabury (5.1% Hispanic).

Seabrook's Native American/Other Population

0 residents of Seabrook, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Seabrook is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. Seabrook ranks 82nd statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Seabrook's population has decreased from 1.1% to 0.0%.

Seabrook's Multiracial Population

28 residents of Seabrook, or 5.3% of the population, identify as Multiracial. The share of Multiracial residents in Seabrook is comparable to the share in Massachusetts overall, where 5.1% of the population is Multiracial. Seabrook ranks 163rd statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, Seabrook's Multiracial population has grown by an estimated 75.0%. Multiracial residents' share of Seabrook's population has increased from 3.6% to 5.3%.

Seabrook is more Multiracial than neighboring Monomoscoy Island (0% Multiracial), Seconsett Island (0% Multiracial), New Seabury (0% Multiracial), Popponesset (2.7% Multiracial), and Popponesset Island (0% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.