Mount airy is located in Frederick county Maryland with a geographic area of 4.1 square miles. The total population in Mount airy is 9,439 with 49.0% male and 51.0% female. Children under age 5 represent 6.3% of the population, under age 18 equal 26.5% of the population and over age 65 is 13.1% of the population. The median household income is $123,750, per capita income is $46,935. There are a total of 3,159 housing units with 90.8% owner occupied. Education includes 12.2% of residents that are high school graduates and 55.5% with a bachelor's degree or higher. The average temperature in Mount airy in the summer is 74 degrees, and in the winter 37 degrees.