Dublin is located in Alameda county California with a geographic area of 15.2 square miles. The total population in Dublin is 63,856 with 49.3% male and 50.7% female. Children under age 5 represent 7.6% of the population, under age 18 equal 26.5% of the population and over age 65 is 9.2% of the population. The median household income is $152,745, per capita income is $62,303. There are a total of 20,883 housing units with 63.7% owner occupied. Education includes 6.6% of residents that are high school graduates and 73.2% with a bachelor's degree or higher. The average temperature in Dublin in the summer is 71 degrees, and in the winter 43 degrees.