Us Population Projection 2050. If current trends continue, the population of the united states will rise to 438 million in 2050, from 296 million in 2005, and 82% of the increase will be due to immigrants. Population growth is increasingly driven by net immigration, which accounts for all population.
Population growing from 273 million on july 1, 1999 to 404 million in 2050. Net immigration increasingly drives population growth, accounting for all population growth beginning in 2040.