United States ended 2015 with a population of 321,418,820 people, which represents an increasea of 2,511,419 people compared to 2014.
United States ranks No. 3 among196 countries which published this information in countryeconomy.com.
The female population is greater, with 162,100,917 women, representing 50.43% of the total, compared to 159,317,903 or 49.57% men.
United States shows a moderate population density, with 33 people per square km and it was in position 51th in our ranking of density population in 2015 .
In this page we show you the progression of the population in United States. You can see the population in other countries in population and see all the information about United States in American economy.