Chestertown is located in Warren county New york with a geographic area of 3.8 square miles. The total population in Chestertown is 707 with 52.1% male and 47.9% female. Children under age 5 represent 0.0% of the population, under age 18 equal 12.7% of the population and over age 65 is 6.6% of the population. The median household income is $63,581, per capita income is $31,564. There are a total of 330 housing units with 50.9% owner occupied. Education includes 19.1% of residents that are high school graduates and 10.3% with a bachelor's degree or higher. The average temperature in Chestertown in the summer is 70 degrees, and in the winter 27 degrees.