Alameda is located in Alameda county California with a geographic area of 10.4 square miles. The total population in Alameda is 79,827 with 48.7% male and 51.3% female. Children under age 5 represent 6.4% of the population, under age 18 equal 21.4% of the population and over age 65 is 16.6% of the population. The median household income is $106,737, per capita income is $55,135. There are a total of 30,514 housing units with 48.2% owner occupied. Education includes 9.2% of residents that are high school graduates and 61.2% with a bachelor's degree or higher. The average temperature in Alameda in the summer is 65 degrees, and in the winter 43 degrees.