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...
America is soooo big and soooo sparsely populated
That is an utterly meaningless statistic. Canada, with four times the population, ranks #233, because most of the country is uninhabited / uninhabitable.
I wonder if that number can be adjusted based on the amount of arable land, or based on the ease of construction (quite the nebulous term here admittedly). The number of mountains presumably makes this hard to compare.