Monomoscoy Island Flag

Monomoscoy Island

County Seat:
No
Area (mi²):
0.232
State:
Massachusetts

Monomoscoy Island is a CDP located in Barnstable County, Massachusetts. Monomoscoy Island has a 2026 population of 104. Monomoscoy Island is currently declining at a rate of -2.8% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Monomoscoy Island is $155,341 with a poverty rate of 0%. The median age in Monomoscoy Island is 49.1 years: 45.8 years for males, and 49.3 years for females. For every 100 females there are 93.2 males.

104
Total Population
449
Density (mi²)
-3 -2.8%
Growth

Monomoscoy Island Population

Monomoscoy Island Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026104-3-2.8%
2025107-2-1.83%

Median Age

Overall: 49.1 years
Female: 49.3 years
Male: 45.8 years

Monomoscoy Island Adults

There are 107 adults, (52 of whom are seniors) in Monomoscoy Island.

Sex Ratio

Female: 73 (51.8%)
Male: 68 (48.2%)

Demographics

The racial composition of Monomoscoy Island includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White141100%
Race
Population ↓
Percentage (of total)
White141100%

Monomoscoy Island Marital Status

Economics and Income Statistics

Monomoscoy Island 's average per capita income is $71,944. Household income levels show a median of $155,341. The poverty rate stands at 0%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$156,023$180,690
Married Families$156,023-
Households$155,341$164,881
Non Families--

$71,944

Average Income

$155,341

Median Household Income

0%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)