Chappaqua is located in Westchester county New york with a geographic area of 0.9 square miles. The total population in Chappaqua is 2,628 with 46.7% male and 53.3% female. Children under age 5 represent 2.5% of the population, under age 18 equal 18.6% of the population and over age 65 is 17.8% of the population. The median household income is $149,832, per capita income is $100,005. There are a total of 1,061 housing units with 82.5% owner occupied. Education includes 2.3% of residents that are high school graduates and 81.7% with a bachelor's degree or higher. The average temperature in Chappaqua in the summer is 70 degrees, and in the winter 27 degrees.