Monomoscoy Island, MA Demographics

A map of Monomoscoy Island's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	141	123	100.0%	88.5%
Black	0	1	0.0%	0.7%
Asian	0	0	0.0%	0.0%
Hispanic	0	9	0.0%	6.5%
Native American/Other	0	1	0.0%	0.7%
Multiracial	0	5	0.0%	3.6%

Monomoscoy Island, Massachusetts has an estimated population of 141, a slight increase from the 139 recorded in the 2020 Census. The population is 100.0% White, 0.0% Black, 0.0% Asian, 0.0% Hispanic, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Monomoscoy Island, with one dot drawn for each person counted by the Census, color-coded by race.

Monomoscoy Island has become considerably 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 Monomoscoy Island, that probability was 21.1% in 2020 and 0.0% in the most recent ACS estimates.

Monomoscoy Island is ranked the 246th 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). Monomoscoy Island was ranked the 246th most populous place in the 2020 Census.

Monomoscoy Island's White Population

141 residents of Monomoscoy Island, or 100.0% of the population, identify as White. The share of White residents in Monomoscoy Island is significantly higher than in Massachusetts overall, where 66.6% of the population is White. Monomoscoy Island ranks 80th statewide in terms of White residents as a share of the population, out of 248 places.

Since the 2020 Census, Monomoscoy Island's White population has grown by an estimated 14.6%. White residents' share of Monomoscoy Island's population has increased from 88.5% to 100.0%.

Monomoscoy Island is more White than neighboring Seabrook (94.7% White), New Seabury (94.9% White), and Popponesset (96.3% White).

Monomoscoy Island's Black Population

0 residents of Monomoscoy Island, or 0.0% of the population, identify as Black. The share of Black residents in Monomoscoy Island is lower than in Massachusetts overall, where 6.4% of the population is Black. Monomoscoy Island ranks 194th statewide in terms of Black residents as a share of the population, out of 248 places.

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

Monomoscoy Island's Asian Population

0 residents of Monomoscoy Island, or 0.0% of the population, identify as Asian. The share of Asian residents in Monomoscoy Island is lower than in Massachusetts overall, where 7.3% of the population is Asian. Monomoscoy Island ranks 241st statewide in terms of Asian residents as a share of the population, out of 248 places.

Since the 2020 Census, Monomoscoy Island's Asian population has grown from 0 to an estimated 0. Asian residents' share of Monomoscoy Island's population has remained roughly unchanged at 0.0%.

Monomoscoy Island is less Asian than neighboring Popponesset (1.1% Asian).

Monomoscoy Island's Hispanic Population

0 residents of Monomoscoy Island, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Monomoscoy Island is considerably lower than in Massachusetts overall, where 13.3% of the population is Hispanic. Monomoscoy Island ranks 72nd statewide in terms of Hispanic residents as a share of the population, out of 248 places.

Since the 2020 Census, Monomoscoy Island's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Monomoscoy Island's population has decreased from 6.5% to 0.0%.

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

Monomoscoy Island's Native American/Other Population

0 residents of Monomoscoy Island, 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 Monomoscoy Island is comparable to the share in Massachusetts overall, where 1.3% of the population is Native American/Other. Monomoscoy Island ranks 153rd statewide in terms of Native American/Other residents as a share of the population, out of 248 places.

Since the 2020 Census, Monomoscoy Island's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Monomoscoy Island's population has decreased from 0.7% to 0.0%.

Monomoscoy Island's Multiracial Population

0 residents of Monomoscoy Island, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Monomoscoy Island is lower than in Massachusetts overall, where 5.1% of the population is Multiracial. Monomoscoy Island ranks 161st statewide in terms of Multiracial residents as a share of the population, out of 248 places.

Since the 2020 Census, Monomoscoy Island's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Monomoscoy Island's population has decreased from 3.6% to 0.0%.

Monomoscoy Island is less Multiracial than neighboring Seabrook (5.3% Multiracial), and Popponesset (2.7% 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.