Barnum Island Flag

Barnum Island

County:
Nassau County
County Seat:
No
Area (mi²):
0.865
State:
New York

Barnum Island is a CDP located in Nassau County, New York. Barnum Island has a 2026 population of 2,117. Barnum Island is currently declining at a rate of -0.89% 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 Barnum Island is $116,250 with a poverty rate of 4.29%. The median age in Barnum Island is 50.8 years: 51.3 years for males, and 50.5 years for females. For every 100 females there are 104.1 males.

2.1K
Total Population
2,446
Density (mi²)
-19 -0.89%
Growth

Barnum Island Population

Barnum Island Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,117-19-0.89%
20252,136-18-0.84%

Median Age

Overall: 50.8 years
Female: 50.5 years
Male: 51.3 years

Barnum Island Adults

There are 1,892 adults, (434 of whom are seniors) in Barnum Island.

Sex Ratio

Female: 1,128 (49%)
Male: 1,174 (51%)

Demographics

The racial composition of Barnum Island includes 77.93% White, 11.03% other race, 4.13% Black or African American, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,79477.93%
Other race25411.03%
Two or more races1245.39%
Black or African American954.13%
Asian351.52%
Race
Population ↓
Percentage (of total)
Other race883.82%
White813.52%
Two or more races592.56%
Race
Population ↓
Percentage (of total)
White1,71374.41%
Other race1667.21%
Black or African American954.13%
Two or more races652.82%
Asian351.52%

Barnum Island Marital Status

Economics and Income Statistics

Barnum Island 's average per capita income is $84,375. Household income levels show a median of $116,250. The poverty rate stands at 4.29%.

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
Married Families$117,721-
Households$116,250$129,754
Families$113,750$137,408
Non Families-$117,571

$84,375

Average Income

$116,250

Median Household Income

4.29%

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)