Thorndale is located in Chester county Pennsylvania with a geographic area of 1.9 square miles. The total population in Thorndale is 3,719 with 50.1% male and 49.9% female. Children under age 5 represent 7.6% of the population, under age 18 equal 23.4% of the population and over age 65 is 19.3% of the population. The median household income is $113,917, per capita income is $53,674. There are a total of 1,327 housing units with 64.9% owner occupied. Education includes 13.9% of residents that are high school graduates and 49.7% with a bachelor's degree or higher. The average temperature in Thorndale in the summer is 73 degrees, and in the winter 33 degrees.