Monomoscoy Island vs Seabrook

A side-by-side comparison of Monomoscoy Island and Seabrook: population, income, housing, and more.

Monomoscoy Island and Seabrook are places in Massachusetts. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Seabrook has the higher population (545 vs 112 in Monomoscoy Island). Monomoscoy Island has the higher median home value ($1,022,700 vs $691,900 in Seabrook). Since 2019, Monomoscoy Island's population has grown faster (+12.0% vs +5.4%).

Population, income & housing

	Monomoscoy Island	Seabrook
Population	112	545
Median age	45.2 yrs	59.0 yrs
Median home value	$1,022,700	$691,900
Housing units	55	375
Homeownership rate	88.9%	95.5%
Bachelor's degree or higher	43.2%	51.5%
Unemployment rate	0.0%	0.0%

Trends (ACS 5-year, 2019–2023)

	Monomoscoy Island	Seabrook
Population	100 → 112 (+12.0%)	517 → 545 (+5.4%)
Median household income	$75,625 → $126,042 (+66.7%)	$109,000 → $123,889 (+13.7%)
Median home value	$1,013,900 → $1,022,700 (+0.9%)	$446,800 → $691,900 (+54.9%)
Median gross rent	$1,297 → $1,706 (+31.5%)	—

Monomoscoy Island

Population

100112

Median household income

$75,625$126,042

Median home value

$1,013,900$1,022,700

Median gross rent

$1,297$1,706

Seabrook

Population

517545

Median household income

$109,000$123,889

Median home value

$446,800$691,900

Age & race/ethnicity

Age distribution (share)

	Monomoscoy Island	Seabrook
Under 5	0.0%	2.8%
5 to 17	15.2%	4.2%
18 to 24	0.0%	7.5%
25 to 34	24.1%	2.6%
35 to 44	8.9%	2.8%
45 to 54	8.9%	6.1%
55 to 64	23.2%	36.0%
65 to 74	19.6%	33.2%
75 and over	0.0%	5.0%

Race & ethnicity (share)

	Monomoscoy Island	Seabrook
White (non-Hispanic)	100.0%	96.7%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	3.3%
Hispanic or Latino	0.0%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Monomoscoy Island	Seabrook
No high school diploma	11.6%	4.5%
High school graduate	10.5%	28.8%
Some college or associate's	34.7%	15.2%
Bachelor's degree	26.3%	26.6%
Graduate or professional degree	16.8%	24.9%

Commute to work

How workers get to work (share)

	Monomoscoy Island	Seabrook
Drove alone	33.3%	89.0%
Carpooled	0.0%	0.0%
Public transit	22.9%	0.0%
Walked	0.0%	2.1%
Bicycle	0.0%	0.0%
Worked from home	43.8%	8.9%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Monomoscoy Island	Seabrook
1-unit, detached	100.0%	100.0%
1-unit, attached	0.0%	0.0%
2 to 4 units	0.0%	0.0%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	0.0%

Poverty & households

	Monomoscoy Island	Seabrook
Poverty rate	0.0%	0.9%
Average household size	2.49	2.21
Mean commute (minutes)	—	28
Median year structure built	2004	1988