This article contains a faithful translation of a German propaganda booklet issued before the plebiscite in Kwidzyn in July 1920. The entire booklet written by the German Committee for Western Prussia is addressed at the Inter-Allied Commission and consists of six chapters informing on the area’s geography, historical conditions, economic structure, current social structure and rivers: Vistula, Nogat and Osa. The passage selected for translation regards the social aspects and describes the inhabitants of Powiśle, area included in the Western Prussian Plebiscite District headquartered in Kwidzyn, in terms of nationality. The publication was created to serve the needs of the German plebiscite agitation and should be approached critically for this specific reason. Nevertheless, this little-known German document holds great historical value, particularly useful to scholars and persons passionate about the history of the interwar period.