rankfurt am Main (German pronunciation: [ˈfʁaŋkfʊɐ̯t am ˈmaɪ̯n] ( listen)) is the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2014 population of 714,241 within its administrative boundaries.[4] The urban area called Frankfurt Rhein-Main has a population of 2,221,910.[2][5] The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region which has a population of 5,500,000[1] and is Germany's second-largest metropolitan region. Since the enlargement of the European Union in 2013, the geographic centre of the EU is about 40 km (25 mi) to the east.