Moving everyone in the US to Texas would only result in 0.2% of the population density of Manhattan (just checked with Wolfram alpha which is great for this kind of thing)
You might be thinking of moving the entire world's population to Texas, which would result in 56.7% of the Manhattan density (by 2017 estimates).
Of course we would still need to grow food in fields, which surely is the most space consumptious part of the population.
You might be thinking of moving the entire world's population to Texas, which would result in 56.7% of the Manhattan density (by 2017 estimates).
Of course we would still need to grow food in fields, which surely is the most space consumptious part of the population.