Mount washington is located in Bullitt county Kentucky with a geographic area of 9.3 square miles. The total population in Mount washington is 14,699 with 52.9% male and 47.1% female. Children under age 5 represent 6.9% of the population, under age 18 equal 27.4% of the population and over age 65 is 11.9% of the population. The median household income is $74,817, per capita income is $31,035. There are a total of 5,306 housing units with 84.5% owner occupied. Education includes 32.1% of residents that are high school graduates and 20.0% with a bachelor's degree or higher. The average temperature in Mount washington in the summer is 76 degrees, and in the winter 36 degrees.