Germany’s Rhineland is a state in the west. Its total area is 19,846 km^ (7,663 sq mi), and its population is roughly 4.05 million. Out of the sixteen states, it is the sixth most populated and ninth largest state. The largest and capital city is Mainz. Ludwigshafen am Rhein, Koblenz, Trier, Kaiserslautern, Worms, and Neuwied are the other cities] Its borders are shared by France, Luxembourg, Belgium, and the states of North Rhine-Westphalia, Saarland, Baden-Württemberg, and Hesse.