Sunol is located in Alameda county California with a geographic area of 28.3 square miles. The total population in Sunol is 835 with 50.8% male and 49.2% female. Children under age 5 represent 4.0% of the population, under age 18 equal 18.6% of the population and over age 65 is 19.2% of the population. The median household income is $161,563, per capita income is $98,991. There are a total of 297 housing units with 85.2% owner occupied. Education includes 7.7% of residents that are high school graduates and 55.9% with a bachelor's degree or higher. The average temperature in Sunol in the summer is 76 degrees, and in the winter 43 degrees.