Arcadia is located in Los angeles county California with a geographic area of 10.9 square miles. The total population in Arcadia is 57,053 with 48.4% male and 51.6% female. Children under age 5 represent 5.2% of the population, under age 18 equal 22.0% of the population and over age 65 is 19.2% of the population. The median household income is $95,736, per capita income is $45,826. There are a total of 19,207 housing units with 60.4% owner occupied. Education includes 12.7% of residents that are high school graduates and 61.4% with a bachelor's degree or higher. The average temperature in Arcadia in the summer is 75 degrees, and in the winter 43 degrees.