it would seem that even with our large metro areas in this country we are behind australia, canada and russia, countries with a significant rural populations.
1. China 1,394,015,977 6. Nigeria 214,028,302
2. India 1,326,093,247 7. Brazil 211,715,973
3. United States 332,639,102 8. Bangladesh 162,650,853
4. Indonesia 267,026,366 9. Russia 141,722,205
5. Pakistan 233,500,636 10. Mexico 128,649,565
this is a list of countries by population so even a comparison to russia is a scale of 2-1. and no one trusts china's data. it would seem also that as a nation as technically advanced and rich as USA compared to any of the others in the top 10 would be flawed or at least skewed in the numbers. our advanced healthcare resources aught to leave any of the others far in the dust i would hope.