Topography Situated in the southernmost part of the Rhine-Ruhr region, Germany's largest metropolitan area with over 11 million inhabitants, Bonn lies within the German state of North Rhine-Westphalia, on the border with Rhineland-Palatinate. Spanning an area of more on both sides of the river Rhine, almost three-quarters of the city lies on the river's left bank.
Topography Situated in the southernmost part of the Rhine-Ruhr region, Germany's largest metropolitan area with over 11 million inhabitants, Bonn lies within the German state of North Rhine-Westphalia on the border with Rhineland-Palatinate. Spanning an area of more on both sides of the river Rhine, almost three-q.uarters of the, city lies on the river's left bank.