<iframe src="https://exploratory.io/viz/kanaugust/Swiss-Number-of-Households-by-Zip-Code-aQp7Zgh0dk?embed=true" frameborder="0" width="100%" height="100%" > </iframe>
Source: Swiss Open Government Data
Data:
Bevölkerung pro PLZ https://opendata.swiss/en/dataset/bevoelkerung-pro-plz
Map:
PLZ_Verzeichnis https://opendata.swiss/en/dataset/plz_verzeichnis