Marysville is located in Snohomish county Washington with a geographic area of 20.8 square miles. The total population in Marysville is 69,629 with 49.1% male and 50.9% female. Children under age 5 represent 6.5% of the population, under age 18 equal 22.9% of the population and over age 65 is 13.1% of the population. The median household income is $83,239, per capita income is $35,120. There are a total of 25,428 housing units with 70.2% owner occupied. Education includes 26.0% of residents that are high school graduates and 21.7% with a bachelor's degree or higher. The average temperature in Marysville in the summer is 62 degrees, and in the winter 42 degrees.