Lake ronkonkoma is located in Suffolk county New york with a geographic area of 4.5 square miles. The total population in Lake ronkonkoma is 18,555 with 49.1% male and 50.9% female. Children under age 5 represent 5.1% of the population, under age 18 equal 21.0% of the population and over age 65 is 17.6% of the population. The median household income is $91,529, per capita income is $38,304. There are a total of 6,290 housing units with 69.3% owner occupied. Education includes 33.8% of residents that are high school graduates and 26.9% with a bachelor's degree or higher. The average temperature in Lake ronkonkoma in the summer is 70 degrees, and in the winter 27 degrees.
