Lake grove is located in Suffolk county New york with a geographic area of 3.0 square miles. The total population in Lake grove is 11,083 with 53.3% male and 46.7% female. Children under age 5 represent 3.9% of the population, under age 18 equal 23.5% of the population and over age 65 is 14.6% of the population. The median household income is $109,375, per capita income is $43,984. There are a total of 3,679 housing units with 83.7% owner occupied. Education includes 25.6% of residents that are high school graduates and 43.0% with a bachelor's degree or higher. The average temperature in Lake grove in the summer is 70 degrees, and in the winter 27 degrees.
