Palo alto is located in Santa clara county California with a geographic area of 24.1 square miles. The total population in Palo alto is 67,973 with 48.6% male and 51.4% female. Children under age 5 represent 4.9% of the population, under age 18 equal 22.8% of the population and over age 65 is 19.3% of the population. The median household income is $174,003, per capita income is $97,307. There are a total of 26,150 housing units with 56.3% owner occupied. Education includes 3.4% of residents that are high school graduates and 84.5% with a bachelor's degree or higher. The average temperature in Palo alto in the summer is 67 degrees, and in the winter 43 degrees.