Winchester is located in Jefferson county Kansas with a geographic area of 0.3 square miles. The total population in Winchester is 547 with 42.6% male and 57.4% female. Children under age 5 represent 3.8% of the population, under age 18 equal 22.1% of the population and over age 65 is 21.8% of the population. The median household income is $46,645, per capita income is $23,073. There are a total of 243 housing units with 62.1% owner occupied. Education includes 42.4% of residents that are high school graduates and 15.2% with a bachelor's degree or higher. The average temperature in Winchester in the summer is 76 degrees, and in the winter 32 degrees.