Johnstown is located in Fulton county New york with a geographic area of 4.8 square miles. The total population in Johnstown is 8,236 with 48.5% male and 51.5% female. Children under age 5 represent 4.4% of the population, under age 18 equal 18.8% of the population and over age 65 is 19.3% of the population. The median household income is $52,157, per capita income is $27,983. There are a total of 3,646 housing units with 60.0% owner occupied. Education includes 31.3% of residents that are high school graduates and 26.3% with a bachelor's degree or higher. The average temperature in Johnstown in the summer is 67 degrees, and in the winter 27 degrees.