Image description: The size and overall distribution of the U.S. population has changed over time, as some states – especially those in the South and West – have grown faster than others. This series of cartograms shows the distribution of the population in 1890, 1950, and 2010. A cartogram is a map that represents the size of geographic units by a statistic such as population count instead of by actual land area. In each cartogram shown here, one square represents 50,000 people.
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