In 1994, the town of Sangerhausen, at that time still an independent municipality, became part of the so-called "Verwaltungsgemeinschaft Sangerhausen", a municipal association consisting of Sangerhausen itself and the two villages/municipalities Edersleben and Oberröblingen. On 29 April 2000 Edersleben left for the "Verwaltungsgemeinschaft Helme". On 1 January 2005 the villages/municipalities Gonna, Grillenberg, Horla, Lengefeld, Morungen, Obersdorf, Pölsfeld, Rotha and Wettelrode joined the association from the "Verwaltungsgemeinschaft Südharz" which was dissolved. Six months later, on 3 July 2005 Pölsfeld left for the "Verwaltungsgemeinschaft Allstedt-Kaltenborn.