Vienna is the capital and most populous city of Austria. Located within the state of Vienna, it serves as the nation's primate city with a population exceeding two million inhabitants. The surrounding metropolitan area houses nearly 2.9 million people, which accounts for approximately one-third of the country's total population.
As the primary cultural, economic, and political center of Austria, Vienna is also ranked as the fifth-largest city in the European Union by population. Additionally, it holds the distinction of being the most populous city situated along the river Danube.