Lewes is located in Sussex county Delaware with a geographic area of 4.2 square miles. The total population in Lewes is 3,266 with 45.5% male and 54.5% female. Children under age 5 represent 0.6% of the population, under age 18 equal 6.9% of the population and over age 65 is 53.9% of the population. The median household income is $72,609, per capita income is $63,144. There are a total of 1,586 housing units with 85.9% owner occupied. Education includes 16.3% of residents that are high school graduates and 56.8% with a bachelor's degree or higher. The average temperature in Lewes in the summer is 75 degrees, and in the winter 35 degrees.