Willow street is located in Lancaster county Pennsylvania with a geographic area of 5.5 square miles. The total population in Willow street is 8,953 with 47.3% male and 52.7% female. Children under age 5 represent 2.6% of the population, under age 18 equal 17.1% of the population and over age 65 is 38.8% of the population. The median household income is $86,667, per capita income is $43,513. There are a total of 3,786 housing units with 47.5% owner occupied. Education includes 29.2% of residents that are high school graduates and 42.9% with a bachelor's degree or higher. The average temperature in Willow street in the summer is 73 degrees, and in the winter 33 degrees.