San martin is located in Santa clara county California with a geographic area of 11.6 square miles. The total population in San martin is 6,498 with 50.1% male and 49.9% female. Children under age 5 represent 2.8% of the population, under age 18 equal 17.6% of the population and over age 65 is 19.0% of the population. The median household income is $115,714, per capita income is $42,567. There are a total of 1,948 housing units with 66.7% owner occupied. Education includes 31.0% of residents that are high school graduates and 26.2% with a bachelor's degree or higher. The average temperature in San martin in the summer is 76 degrees, and in the winter 43 degrees.
