United States ended 1957 with a population of 171,178,000 people, which represents an increasea of 3,100,000 people compared to 1956.
United States ranks No. 2 among3 countries which published this information in countryeconomy.com.
United States is a country with a very low population density, with 18 people per square km and it was in position 2th in our ranking of density population in 1957.
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.