Wadena is located in Wadena county Minnesota with a geographic area of 5.4 square miles. The total population in Wadena is 4,145 with 50.7% male and 49.3% female. Children under age 5 represent 8.2% of the population, under age 18 equal 26.7% of the population and over age 65 is 21.5% of the population. The median household income is $38,582, per capita income is $22,319. There are a total of 1,906 housing units with 54.8% owner occupied. Education includes 28.3% of residents that are high school graduates and 19.6% with a bachelor's degree or higher. The average temperature in Wadena in the summer is 66 degrees, and in the winter 9 degrees.