Osterburg is a town in the district of Stendal, in Saxony-Anhalt, Germany, situated approximately 22 kilometres northwest of Stendal. Ballersted…Osterburg is a town in the district of Stendal, in Saxony-Anhalt, Germany, situated approximately 22 kilometres northwest of Stendal. Ballerstedt, Düsedau, Erxleben, Flessau, Gladigau, Königsmark, Krevese, Meseberg, Rossau and Walsleben are former municipalities that were absorbed into Osterburg in July 2009.