The Frankfurt Rhine-Main Metropolitan Region, often simply referred to as Frankfurt Rhine-Main, Frankfurt Rhine-Main area or Rhine-Main area (German: Frankfurt/Rhein-Main. abbreviated FRM) is the third largest metropolitan region in Germany (after Ruhr and Berlin), with a total population exceeding 5.8 million. The metropolitan region is located in the central western part of Germany, and stretches over parts of three federal states: Hesse, Rhineland-Palatinate and Bavaria, as well as the cities of Frankfurt am Main, Wiesbaden, Offenbach, Mainz, Darmstadt and Aschaffenburg.