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At 3.8 million square miles (9.8 million km2) and with over 324 million people, the United States is the world's third-largest country by total area (and fourth-largest by land area) and the third-most populous.
The wealth of households amounts to USD 241 trillion (2013) and is estimated to increase by 40% in five years. The U.S. net worth of $100 trillion and Switzerland's USD 0.51 million/inhabitant are the highest numbers in the world.