Mannheim also forms part of the wider Rhine-Neckar Metropolitan Region. The Rhine-Neckar Metropolitan Region, often referred to as the Rhein-Neckar-Triangle is a polycentric metropolitan region located in south western Germany, between the Frankfurt/Rhine-Main region to the North and the Stuttgart Region to the South-East. The metropolitan region includes the major cities of Mannheim, Ludwigshafen and Heidelberg. Other cities within the area include the former Free imperial cities of Speyer and Worms.
Mannheim is rated Sufficiency by the Globalization and World Cities Research Network (GaWC) which evaluates and ranks the relationships between world cities in the context of globalisation. Sufficiency level cities are cities that have a sufficient degree of services so as not to be overly dependent on world cities.
Mannheim has a population of over 305,000 people. Mannheim also forms part of the wider Rhine-Neckar metropolitan area which has a population of over 2,400,000 people.