Though the data for Austria still seems to have a few small problems, the overall structure looks like many of the other maps. The pattern in the far north of Niederösterreich (Lower Austria, N) is remarkable though, because it looks different than the rest. Also, Vienna (W) is lacking some data, but would look like a spiral connecting its districts otherwise. What is quite visible, though, are the mountains that define the borders between some of the provinces, and which appear as regions without any postal codes.
See also the interactive version!
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