San leandro is located in Alameda county California with a geographic area of 13.3 square miles. The total population in San leandro is 90,489 with 48.8% male and 51.2% female. Children under age 5 represent 4.5% of the population, under age 18 equal 18.4% of the population and over age 65 is 16.4% of the population. The median household income is $86,604, per capita income is $38,505. There are a total of 31,274 housing units with 56.2% owner occupied. Education includes 20.2% of residents that are high school graduates and 36.7% with a bachelor's degree or higher. The average temperature in San leandro in the summer is 64 degrees, and in the winter 43 degrees.