Bayville is located in Nassau county New york with a geographic area of 1.5 square miles. The total population in Bayville is 6,720 with 51.9% male and 48.1% female. Children under age 5 represent 2.0% of the population, under age 18 equal 16.4% of the population and over age 65 is 22.1% of the population. The median household income is $115,972, per capita income is $63,142. There are a total of 2,572 housing units with 86.0% owner occupied. Education includes 16.8% of residents that are high school graduates and 55.8% with a bachelor's degree or higher. The average temperature in Bayville in the summer is 70 degrees, and in the winter 27 degrees.
