Vienna's POSTAL DISTRICTS and ADDRESSES

Vienna is divided into 23 Bezirke , or postal districts , which spiral outwards from the first district (the Innere Stadt), in a clockwise direction, with only the odd geographical hiccup. When writing addresses , the Viennese write the number of the district first, followed by the name of the street, and then the house number; most residential addresses also include an apartment number, separated from the house number by a slash. For example: 9, Löblichgasse 11/14, denotes apartment no. 14 at no. 11 Löblichgasse in the ninth district.