A map showing the population density of North America at the time Columbus discovered the New World in 1492. The density shown is population per 100 square kilometers or approximately 38.6 square miles. The most densely populated areas were in what is now Mexico, Central America & the Antilles, the homeland of most of the current Amerindian & Mestizo population of North America. In what is now the US, only the northern Rio Grande Valley approached a density of 375+ per 100 sq. kilometers - this is the area of the Pueblo peoples who still live in their pueblos. The Pacific Coast was the second most densely populatated area at 150-375 per 100 sq. kilometers or about 1.3 to 9.7 per sq. mile. Noticed that some areas of the current US had densities as low as 0-10 per 100 sq. kilometer (0-.25 per square mile) including a very fertile tract covering much of the Ohio Valley.
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