Switzerland is ranked 67th in country population density. For reference, the United Kingdom is ranked 48th and the United States is ranked 183rd.
https://en.wikipedia.org/wiki/List_of_countries_and_dependen...
https://en.wikipedia.org/wiki/List_of_countries_and_dependen...
It's very meaningful, when the main argument is population overcrowding.
https://en.wikipedia.org/wiki/Population_weighted_density
The problem is it's difficult to compare across polities because nobody will agree on the right granularity of parcel size to use (and indeed, it is not really obvious what the right granularity is, and choice of parcel size can drastically change the number).
It's similar to the metrics of "average class size" vs. "student-weighted class size". https://allenschwenk.wordpress.com/wp-content/uploads/2023/0...