Clarksburg is located in Montgomery county Maryland with a geographic area of 9.6 square miles. The total population in Clarksburg is 26,234 with 49.4% male and 50.6% female. Children under age 5 represent 8.9% of the population, under age 18 equal 32.8% of the population and over age 65 is 7.0% of the population. The median household income is $149,173, per capita income is $49,274. There are a total of 7,851 housing units with 88.7% owner occupied. Education includes 7.1% of residents that are high school graduates and 73.2% with a bachelor's degree or higher. The average temperature in Clarksburg in the summer is 74 degrees, and in the winter 37 degrees.