‘Somewhere back at the house I have my calculations of how much space each person would have if Texas was flat and shared out equally among the world population.”
http://persquaremile.com/2012/08/08/if-the-worlds-population-lived-like/
Area of Texas in square miles: 261,797
Square mile in square feet: 27,878,400
Area of Texas in square feet: 7,298,481,484,800
Approximate population, H. sapiens (Planet Earth only): 7,000,000,000
Square feet of Texas per individual H. sapiens, divided equally: 1,043
Exact measurement of each side of square territory, in feet: 32.2899397973159