Buffalo is located in Johnson county Wyoming with a geographic area of 4.5 square miles. The total population in Buffalo is 4,606 with 57.3% male and 42.7% female. Children under age 5 represent 5.7% of the population, under age 18 equal 19.2% of the population and over age 65 is 28.4% of the population. The median household income is $53,428, per capita income is $35,111. There are a total of 2,269 housing units with 59.4% owner occupied. Education includes 28.3% of residents that are high school graduates and 36.2% with a bachelor's degree or higher. The average temperature in Buffalo in the summer is 68 degrees, and in the winter 16 degrees.