About Lena, WILena is located in Wisconsin. Lena, Wisconsin has a population of 3,065. Lena is less family-centric than the surrounding county with 25% households with children. The county percentage for households with children is 25%. The median household income in Lena, Wisconsin is $59,412. The median household income for the surrounding county is $57,852 compared to the national median of $61,963. The median age of people living in Lena is 44.3 years. Lena WeatherThe average high temperature in July is 80.2 degrees, with an average low temperature in January of 3.64 degrees. The annual precipitation is 31.97. Lena MapLena real estate officesReal estate near LenaNearby Cities |