Darby is located in Delaware county Pennsylvania with a geographic area of 0.8 square miles. The total population in Darby is 10,711 with 44.8% male and 55.2% female. Children under age 5 represent 4.9% of the population, under age 18 equal 27.9% of the population and over age 65 is 14.1% of the population. The median household income is $40,423, per capita income is $19,948. There are a total of 3,632 housing units with 51.5% owner occupied. Education includes 38.5% of residents that are high school graduates and 17.6% with a bachelor's degree or higher. The average temperature in Darby in the summer is 73 degrees, and in the winter 33 degrees.
