Altenburg is a city in Thuringia, Germany, located 40 kilometres (25 miles) south of Leipzig, 90 kilometres (56 miles) west of Dresden and 100 kilometres (62 miles) east of Erfurt. It is the capital of the Altenburger Land district and part of a polycentric old-industrial textile and metal production region between Gera, Zwickau and Chemnitz with more than 1 million inhabitants, while the city itself has a population of 33,000. Altenburg lies in the flat and fertile landscape of Osterland on the Pleiße river in the very east of Thuringia, next to the neighboring federal state of Saxony.