Fallston is located in Harford county Maryland with a geographic area of 14.0 square miles. The total population in Fallston is 9,118 with 47.1% male and 52.9% female. Children under age 5 represent 6.0% of the population, under age 18 equal 21.2% of the population and over age 65 is 19.4% of the population. The median household income is $130,625, per capita income is $53,328. There are a total of 3,146 housing units with 94.5% owner occupied. Education includes 20.7% of residents that are high school graduates and 53.2% with a bachelor's degree or higher. The average temperature in Fallston in the summer is 74 degrees, and in the winter 37 degrees.