Arvada is located in Jefferson county Colorado with a geographic area of 38.9 square miles. The total population in Arvada is 120,229 with 49.1% male and 50.9% female. Children under age 5 represent 5.8% of the population, under age 18 equal 21.0% of the population and over age 65 is 17.0% of the population. The median household income is $92,669, per capita income is $45,270. There are a total of 46,983 housing units with 75.9% owner occupied. Education includes 19.8% of residents that are high school graduates and 47.4% with a bachelor's degree or higher. The average temperature in Arvada in the summer is 69 degrees, and in the winter 29 degrees.