Portola valley is located in San mateo county California with a geographic area of 9.1 square miles. The total population in Portola valley is 4,568 with 44.3% male and 55.7% female. Children under age 5 represent 3.9% of the population, under age 18 equal 20.5% of the population and over age 65 is 37.3% of the population. The median household income is $235,469, per capita income is $142,778. There are a total of 1,742 housing units with 78.6% owner occupied. Education includes 2.1% of residents that are high school graduates and 88.5% with a bachelor's degree or higher. The average temperature in Portola valley in the summer is 76 degrees, and in the winter 43 degrees.
