I created a population density map for Switzerland and the DACH area. I used available data from Kontur and reassembled the data via QGIS to Blender with the GIS Addon

The data is available via Kontur.io. The population density is saved into hexagons and when its in Blender you just need to crank up the height in the zone axis to make it more visible. I am really baffled how empty east germany is, even 30years after the Berlin Wall. The DACH area is highly populated