San carlos is located in San mateo county California with a geographic area of 5.4 square miles. The total population in San carlos is 29,647 with 47.9% male and 52.1% female. Children under age 5 represent 5.9% of the population, under age 18 equal 23.9% of the population and over age 65 is 15.0% of the population. The median household income is $189,739, per capita income is $95,211. There are a total of 10,955 housing units with 69.5% owner occupied. Education includes 5.8% of residents that are high school graduates and 71.0% with a bachelor's degree or higher. The average temperature in San carlos in the summer is 67 degrees, and in the winter 43 degrees.
