Long Island

County:: Cumberland County
County Seat:: No
Area (mi²):: 1.434
State:: Maine

Long Island is located in Cumberland County, Maine. Long Island has a 2025 population of 227. Long Island is currently declining at a rate of -0.87% annually and its population has decreased by -2.99% since the most recent census, which recorded a population of 234 in 2020.

The average household income in Long Island is $109,715 with a poverty rate of 4.67%.The median age in Long Island is 44.1 years: 50.8 years for males, and 37.9 years for females.

Demographics

The racial composition of Long Island includes 88.33% White, 3.33% Asian, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	265	88.33%
Two or more races	25	8.33%
Asian	10	3.33%

Long Island Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Long Island's average per capita income is $46,607. Household income levels show a median of $80,625. The poverty rate stands at 4.67%.

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	$104,625	-
Families	$104,000	$127,230
Households	$80,625	$109,715
Non Families	$38,438	$71,529

$46,607

Average Income

$80,625

Median Household Income

4.67%

Poverty Rate