The 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 comprised nearly 324 million people, according to the estimates conducted by the International Monetary Fund in 2016. The U.S. population growth was about 0.78 percent in 2015. The growth rate has significantly decreased since 2008. The U.S. Census Bureau predicts further growth in the coming decades and expects the population of the USA to reach 417 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 80 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.