Dublin is located in Franklin county Ohio with a geographic area of 24.7 square miles. The total population in Dublin is 47,824 with 50.9% male and 49.1% female. Children under age 5 represent 5.6% of the population, under age 18 equal 29.4% of the population and over age 65 is 11.7% of the population. The median household income is $138,372, per capita income is $60,152. There are a total of 16,819 housing units with 75.8% owner occupied. Education includes 5.5% of residents that are high school graduates and 78.6% with a bachelor's degree or higher. The average temperature in Dublin in the summer is 73 degrees, and in the winter 32 degrees.