How might the overall population densities of the Latin America's landmass and population to those of the United States compare?

3 answers

http://www.census.gov/geo/maps-data/maps/pdfs/thematic/us_popdensity_2010map.pdf

http://www.roebuckclasses.com/105/regions/latinam/samericahuman/humansamer.htm

What do you think?
The overall population density of South America is at least twice as large as the population density of the United States?
I disagree.

South America is much less densely populated with most of the land containing less than 25 people per square mile.

The density of the much of the U.S. is at least 3 times that amount.