Federal state: Rhineland-Palatinate covers an area of approximately 19853 km² and has a population of approximately 4 million people. The 3 largest cities in Rhineland-Palatinate according to population are Mainz with approximately 223318, Ludwigshafen with approximately 176110 and Koblenz with approximately 115298 inhabitants. Most of the fairs in Rhineland-Palatinate take place in Mainz.