Devils lake is located in Ramsey county North dakota with a geographic area of 7.0 square miles. The total population in Devils lake is 7,302 with 49.9% male and 50.1% female. Children under age 5 represent 4.9% of the population, under age 18 equal 22.6% of the population and over age 65 is 22.2% of the population. The median household income is $39,248, per capita income is $31,223. There are a total of 3,360 housing units with 46.5% owner occupied. Education includes 28.9% of residents that are high school graduates and 26.4% with a bachelor's degree or higher. The average temperature in Devils lake in the summer is 67 degrees, and in the winter 10 degrees.