Williamson is located in Wayne county New york with a geographic area of 3.8 square miles. The total population in Williamson is 2,642 with 48.0% male and 52.0% female. Children under age 5 represent 10.0% of the population, under age 18 equal 24.9% of the population and over age 65 is 16.8% of the population. The median household income is $47,850, per capita income is $25,800. There are a total of 1,103 housing units with 56.2% owner occupied. Education includes 38.7% of residents that are high school graduates and 13.9% with a bachelor's degree or higher. The average temperature in Williamson in the summer is 70 degrees, and in the winter 27 degrees.