Middle Island

County:: Suffolk County
County Seat:: No
Area (mi²):: 8.219
State:: New York

Middle Island is a CDP located in Suffolk County, New York. Middle Island has a 2025 population of 10,793. Middle Island is currently growing at a rate of 0.19% annually but its population has decreased by -2.15% since the most recent census, which recorded a population of 11,030 in 2020.

The average household income in Middle Island is $106,925 with a poverty rate of 12.02%. The median age in Middle Island is 43.4 years: 40.9 years for males, and 45.7 years for females.

Demographics

The racial composition of Middle Island includes 76.33% White, 13.53% Black or African American, 3.03% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	8,462	76.33%
Black or African American	1,500	13.53%
Two or more races	651	5.87%
Other race	336	3.03%
Asian	105	0.95%
Native American	32	0.29%
Native Hawaiian or Pacific Islander	0	0%

Middle Island Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Middle Island's average per capita income is $60,259. Household income levels show a median of $89,702. The poverty rate stands at 12.02%.

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	$146,473	-
Families	$105,043	$126,623
Households	$89,702	$106,925
Non Families	$53,016	$70,381

$60,259

Average Income

$89,702

Median Household Income

12.02%

Poverty Rate