Prospect is located in New haven county Connecticut with a geographic area of square miles. The total population in Prospect is 9,710 with 49.9% male and 50.1% female. Children under age 5 represent 2.7% of the population, under age 18 equal 20.7% of the population and over age 65 is 20.8% of the population. The median household income is $106,667, per capita income is $42,319. There are a total of 3,324 housing units with 91.9% owner occupied. Education includes 26.1% of residents that are high school graduates and 45.2% with a bachelor's degree or higher. The average temperature in Prospect in the summer is 68 degrees, and in the winter 27 degrees.