Blue ash is located in Hamilton county Ohio with a geographic area of 7.6 square miles. The total population in Blue ash is 12,417 with 48.7% male and 51.3% female. Children under age 5 represent 5.9% of the population, under age 18 equal 23.2% of the population and over age 65 is 17.8% of the population. The median household income is $97,192, per capita income is $52,279. There are a total of 5,112 housing units with 67.2% owner occupied. Education includes 8.7% of residents that are high school graduates and 61.6% with a bachelor's degree or higher. The average temperature in Blue ash in the summer is 73 degrees, and in the winter 32 degrees.