Greenwich is located in Fairfield county Connecticut with a geographic area of 4.8 square miles. The total population in Greenwich is 12,967 with 46.0% male and 54.0% female. Children under age 5 represent 4.5% of the population, under age 18 equal 21.2% of the population and over age 65 is 18.6% of the population. The median household income is $115,885, per capita income is $102,276. There are a total of 5,411 housing units with 48.3% owner occupied. Education includes 12.2% of residents that are high school graduates and 66.5% with a bachelor's degree or higher. The average temperature in Greenwich in the summer is 68 degrees, and in the winter 27 degrees.
