Comparative populationsThe three most populous countries are currently: China, India and the United States of America. While China and India both top the one billion mark, the population of the United States was around 330.01 million people in 2020, according to the estimates conducted by the International Monetary Fund. The U.S. population growth was about 0.35 percent in 2020 and has significantly decreased since 2010, when it was at 0.83 percent. The U.S. Census Bureau predicts further growth in the coming decades and expects the population of the USA to reach 416.8 million people in 2060.
California, Texas and Florida currently top the population ranking of U.S. states. The least populous states are Vermont and Wyoming. More than 82 percent of the American population lives in urban areas, compared to just 50 percent of the world population. The most populous metro areas of the United States are New York, Los Angeles, and Chicago, followed by Dallas, Houston and Washington D.C.