Preston is located in New london county Connecticut with a geographic area of square miles. The total population in Preston is 4,644 with 45.9% male and 54.1% female. Children under age 5 represent 4.6% of the population, under age 18 equal 20.1% of the population and over age 65 is 18.1% of the population. The median household income is $87,885, per capita income is $39,112. There are a total of 1,808 housing units with 87.6% owner occupied. Education includes 24.8% of residents that are high school graduates and 28.7% with a bachelor's degree or higher. The average temperature in Preston in the summer is 68 degrees, and in the winter 27 degrees.
