Vienna is located in Johnson county Illinois with a geographic area of 2.8 square miles. The total population in Vienna is 1,587 with 42.9% male and 57.1% female. Children under age 5 represent 8.3% of the population, under age 18 equal 21.4% of the population and over age 65 is 28.2% of the population. The median household income is $30,809, per capita income is $22,554. There are a total of 649 housing units with 56.2% owner occupied. Education includes 39.9% of residents that are high school graduates and 15.6% with a bachelor's degree or higher. The average temperature in Vienna in the summer is 77 degrees, and in the winter 27 degrees.
