The twenty-first district of Vienna is a Vienna outer and territorial district located in the north of the city and east of the Danube. The district consists among others of the districts Strebersdorf, Stammersdorf and Donaufeld. Floridsdorf experienced an extraordinary population growth since the end of the 19th century. Parts of the Old Danube and parts of the Danube Island belong to the district area.
Wien 21.,Floridsdorf: Main postcode (ZIP code): 1210
Towns & cadastral municipalities: Wien, Floridsdorf, Wien.