Colchester is located in Catskills New york with a geographic area of square miles. The total population in Colchester is 1,894 with 54.9% male and 45.1% female. Children under age 5 represent 2.9% of the population, under age 18 equal 20.7% of the population and over age 65 is 22.8% of the population. The median household income is $58,864, per capita income is $30,465. There are a total of 684 housing units with 88.7% owner occupied. Education includes 49.6% of residents that are high school graduates and 13.6% with a bachelor's degree or higher. The average temperature in Colchester in the summer is 70 degrees, and in the winter 27 degrees.