Oak island is located in Brunswick county North carolina with a geographic area of 19.3 square miles. The total population in Oak island is 8,118 with 48.3% male and 51.7% female. Children under age 5 represent 1.9% of the population, under age 18 equal 8.8% of the population and over age 65 is 37.0% of the population. The median household income is $71,193, per capita income is $45,329. There are a total of 3,881 housing units with 84.7% owner occupied. Education includes 20.0% of residents that are high school graduates and 46.9% with a bachelor's degree or higher. The average temperature in Oak island in the summer is 75 degrees, and in the winter 38 degrees.
