The municipal area stretches along the river Ilse, north of Wernigerode and the Harz mountain range.
On 1 January 2010 the municipalities of the former Verwaltungsgemeinschaft ("collective municipality") Osterwieck-Fallstein –Deersheim, Hessen, Osterode, Rohrsheim, Veltheim, Zilly, and Dardesheim– together with Berßel, Bühne, Lüttgenrode, Rhoden, Schauen, and Wülperode merged into Osterwieck.

The Altstadt (Old Town) with St. Stephen's Church is a stop on the scenic German Timber-Frame Road and on the Romanesque Road.
The municipal area stretches along the river Ilse, north of Wernigerode and the Harz mountain range. On 1 January 2010 the municipalities of the former Verwaltungsgemeinschaft ("collective municipality") Osterwieck-Fallstein –Deersheim, Hessen, Osterode, Rohrsheim, Veltheim, Zilly, and Dardesheim– together with Berßel, Bühne, Lüttgenrode, Rhoden, Schauen, and Wülperode merged into Osterwieck.
The Altstadt (Old Town) with St. Stephen's Church is a stop on the scenic German Timber-Frame Road and on the Romanesque Road.
Osterwieck