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As of 31
January 2010, the Earth's population is estimated by the United States Census
Bureau to be 6,799,700,000.
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That
gives use
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•235,770 ft2 per person in the world.
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•1096 ft2 per person if the entire
world population lived in just Texas.
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Legend
reads - U.S. 25-50 per km2. A map of the world, with colors to
highlight the population density of each country or territory. Numbers on the
legend are in people per km2, and all countries smaller than
20,000 km2 are represented by a dot.
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Image and
info source:
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http://en.wikipedia.org/wiki/World_population
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Additional
info per state:
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http://quickfacts.census.gov/qfd/index.html
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World = 57,505,708 mi²
or 1,603,167,129,907,200 ft²
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USA =
3,537,438 mi2 or 98,618,111,539,200 ft²
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WA State
= 66,544 mi2 or 1,855,140,249,600 ft²
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TX State
= 267,339 mi2 or 7,452,983,577,600 ft²
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