Dauphin island is located in Mobile county Alabama with a geographic area of 6.3 square miles. The total population in Dauphin island is 1,610 with 52.4% male and 47.6% female. Children under age 5 represent 0.9% of the population, under age 18 equal 5.8% of the population and over age 65 is 34.0% of the population. The median household income is $65,481, per capita income is $45,999. There are a total of 679 housing units with 92.8% owner occupied. Education includes 13.0% of residents that are high school graduates and 34.3% with a bachelor's degree or higher. The average temperature in Dauphin island in the summer is 77 degrees, and in the winter 43 degrees.
