Yarnell is located in Yavapai county Arizona with a geographic area of 8.8 square miles. The total population in Yarnell is 667 with 42.4% male and 57.6% female. Children under age 5 represent 0.0% of the population, under age 18 equal 2.2% of the population and over age 65 is 62.1% of the population. The median household income is $41,010, per capita income is $28,118. There are a total of 407 housing units with 62.9% owner occupied. Education includes 23.6% of residents that are high school graduates and 30.7% with a bachelor's degree or higher. The average temperature in Yarnell in the summer is 83 degrees, and in the winter 49 degrees.