Brookeville is located in Montgomery county Maryland with a geographic area of 0.1 square miles. The total population in Brookeville is 151 with 46.4% male and 53.6% female. Children under age 5 represent 2.6% of the population, under age 18 equal 15.2% of the population and over age 65 is 21.9% of the population. The median household income is $156,250, per capita income is $60,970. There are a total of 51 housing units with 86.3% owner occupied. Education includes 3.9% of residents that are high school graduates and 68.6% with a bachelor's degree or higher. The average temperature in Brookeville in the summer is 74 degrees, and in the winter 37 degrees.