Lake Ronkonkoma

County:: Suffolk County
County Seat:: No
Area (mi²):: 4.536
State:: New York

Lake Ronkonkoma is a CDP located in Suffolk County, New York. Lake Ronkonkoma has a 2025 population of 17,885. Lake Ronkonkoma is currently declining at a rate of -0.84% annually and its population has decreased by -3.61% since the most recent census, which recorded a population of 18,555 in 2020.

The average household income in Lake Ronkonkoma is $128,306 with a poverty rate of 8.54%.The median age in Lake Ronkonkoma is 43.1 years: 44.5 years for males, and 42 years for females.

Demographics

The racial composition of Lake Ronkonkoma includes 78.08% White, 8.09% Asian, 3.42% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	14,280	78.08%
Two or more races	1,681	9.19%
Asian	1,479	8.09%
Black or African American	626	3.42%
Other race	157	0.86%
Native American	66	0.36%

Lake Ronkonkoma Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lake Ronkonkoma's average per capita income is $64,343. Household income levels show a median of $102,608. The poverty rate stands at 8.54%.

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	$142,316	-
Families	$129,839	$149,872
Households	$102,608	$128,306
Non Families	$62,409	$86,469

$64,343

Average Income

$102,608

Median Household Income

8.54%

Poverty Rate