Miller place is located in Suffolk county New york with a geographic area of 6.5 square miles. The total population in Miller place is 12,775 with 44.6% male and 55.4% female. Children under age 5 represent 4.4% of the population, under age 18 equal 25.7% of the population and over age 65 is 15.9% of the population. The median household income is $123,984, per capita income is $50,268. There are a total of 4,147 housing units with 85.4% owner occupied. Education includes 23.5% of residents that are high school graduates and 46.7% with a bachelor's degree or higher. The average temperature in Miller place in the summer is 70 degrees, and in the winter 27 degrees.