Vienna is located in Maries county Missouri with a geographic area of 1.1 square miles. The total population in Vienna is 897 with 45.4% male and 54.6% female. Children under age 5 represent 7.2% of the population, under age 18 equal 19.8% of the population and over age 65 is 26.5% of the population. The median household income is $32,377, per capita income is $22,101. There are a total of 343 housing units with 52.5% owner occupied. Education includes 33.5% of residents that are high school graduates and 26.2% with a bachelor's degree or higher. The average temperature in Vienna in the summer is 74 degrees, and in the winter 32 degrees.