Thompson is located in Sullivan county New york with a geographic area of square miles. The total population in Thompson is 14,985 with 53.8% male and 46.2% female. Children under age 5 represent 6.7% of the population, under age 18 equal 20.8% of the population and over age 65 is 21.6% of the population. The median household income is $52,652, per capita income is $30,022. There are a total of 5,653 housing units with 56.5% owner occupied. Education includes 30.6% of residents that are high school graduates and 28.7% with a bachelor's degree or higher. The average temperature in Thompson in the summer is 70 degrees, and in the winter 27 degrees.