Lena is located in Stephenson county Illinois with a geographic area of 2.7 square miles. The total population in Lena is 2,780 with 50.6% male and 49.4% female. Children under age 5 represent 4.4% of the population, under age 18 equal 25.8% of the population and over age 65 is 24.3% of the population. The median household income is $56,118, per capita income is $29,112. There are a total of 1,123 housing units with 83.6% owner occupied. Education includes 29.3% of residents that are high school graduates and 25.6% with a bachelor's degree or higher. The average temperature in Lena in the summer is 74 degrees, and in the winter 27 degrees.
