Kaiserslautern is a medium-sized city in southwest Germany, located in the state of Rhineland-Palatinate. It is the administrative center of the district of Kaiserslautern. At the time of the 2010 census, the city had 107,659 inhabitants. Kaiserslautern is home to the football club 1. FC Kaiserslautern, who play in the 2. Bundesliga.