Williamsburg is located in Franklin county Kansas with a geographic area of 1.0 square miles. The total population in Williamsburg is 342 with 48.5% male and 51.5% female. Children under age 5 represent 13.5% of the population, under age 18 equal 29.5% of the population and over age 65 is 28.7% of the population. The median household income is $32,188, per capita income is $15,616. There are a total of 127 housing units with 66.1% owner occupied. Education includes 48.8% of residents that are high school graduates and 3.9% with a bachelor's degree or higher. The average temperature in Williamsburg in the summer is 78 degrees, and in the winter 32 degrees.