What Is The Population Of United States 2024 In Billion. By population, the united states of america is the 3rd largest country in the world, behind china (1.39 billion) and india (1.31 billion). It's also an increase of 4,443,957 people from 2020's april 1 census day.
Population in 2024 is expected to grow by 1 person about every 24 seconds. Current population of united states.