Daufuskie island is located in Beaufort county South carolina with a geographic area of 9.8 square miles. The total population in Daufuskie island is 485 with 56.1% male and 43.9% female. Children under age 5 represent 3.7% of the population, under age 18 equal 8.9% of the population and over age 65 is 45.6% of the population. The median household income is $129,667, per capita income is $94,537. There are a total of 228 housing units with 96.9% owner occupied. Education includes 15.8% of residents that are high school graduates and 68.9% with a bachelor's degree or higher. The average temperature in Daufuskie island in the summer is 77 degrees, and in the winter 43 degrees.