Clifton is located in Mesa county Colorado with a geographic area of 6.0 square miles. The total population in Clifton is 20,783 with 49.0% male and 51.0% female. Children under age 5 represent 7.2% of the population, under age 18 equal 26.9% of the population and over age 65 is 12.8% of the population. The median household income is $46,394, per capita income is $21,119. There are a total of 7,241 housing units with 64.9% owner occupied. Education includes 32.2% of residents that are high school graduates and 11.7% with a bachelor's degree or higher. The average temperature in Clifton in the summer is 68 degrees, and in the winter 29 degrees.