Old greenwich is located in Fairfield county Connecticut with a geographic area of 2.0 square miles. The total population in Old greenwich is 6,980 with 50.8% male and 49.2% female. Children under age 5 represent 6.6% of the population, under age 18 equal 34.4% of the population and over age 65 is 14.1% of the population. The median household income is $238,750, per capita income is $107,981. There are a total of 2,302 housing units with 85.1% owner occupied. Education includes 4.6% of residents that are high school graduates and 87.1% with a bachelor's degree or higher. The average temperature in Old greenwich in the summer is 68 degrees, and in the winter 27 degrees.
