Buffalo is located in Wilson county Kansas with a geographic area of 0.3 square miles. The total population in Buffalo is 344 with 40.7% male and 59.3% female. Children under age 5 represent 11.0% of the population, under age 18 equal 39.5% of the population and over age 65 is 12.2% of the population. The median household income is $44,500, per capita income is $15,312. There are a total of 110 housing units with 91.8% owner occupied. Education includes 50.9% of residents that are high school graduates and 3.6% with a bachelor's degree or higher. The average temperature in Buffalo in the summer is 77 degrees, and in the winter 32 degrees.