Delmar is located in Sussex county Delaware with a geographic area of 1.9 square miles. The total population in Delmar is 2,153 with 39.4% male and 60.6% female. Children under age 5 represent 8.1% of the population, under age 18 equal 25.1% of the population and over age 65 is 18.9% of the population. The median household income is $48,393, per capita income is $20,722. There are a total of 778 housing units with 58.2% owner occupied. Education includes 43.8% of residents that are high school graduates and 18.5% with a bachelor's degree or higher. The average temperature in Delmar in the summer is 74 degrees, and in the winter 35 degrees.
