Postleitzahl

Austria uses a four digit numerical postcode system, (ie from 1000 to 9999). The first digit relates to the province (1 = Wien, 2/3 = Niederösterreich, 4 = Oberösterreich, 5 = Salzburg, 6 = Tirol/Vorarlberg, 7 = Burgenland, 8 = Steiermark, 9 = Kärnten).