Arcata is located in Humboldt county California with a geographic area of 9.4 square miles. The total population in Arcata is 18,266 with 50.3% male and 49.7% female. Children under age 5 represent 2.3% of the population, under age 18 equal 10.1% of the population and over age 65 is 11.7% of the population. The median household income is $38,603, per capita income is $25,540. There are a total of 6,993 housing units with 36.0% owner occupied. Education includes 12.1% of residents that are high school graduates and 42.4% with a bachelor's degree or higher. The average temperature in Arcata in the summer is 58 degrees, and in the winter 43 degrees.
