Mill neck is located in Nassau county New york with a geographic area of 2.6 square miles. The total population in Mill neck is 1,178 with 50.0% male and 50.0% female. Children under age 5 represent 3.1% of the population, under age 18 equal 24.8% of the population and over age 65 is 23.7% of the population. The median household income is $217,917, per capita income is $128,692. There are a total of 416 housing units with 94.0% owner occupied. Education includes 5.0% of residents that are high school graduates and 86.1% with a bachelor's degree or higher. The average temperature in Mill neck in the summer is 70 degrees, and in the winter 27 degrees.