Current Population Of Usa 2024 By State. As of 1 january 2024, the population of united states of america (usa) was estimated to be 340,092,699 people. The projections are based on a monthly series of population estimates starting with the april 1, 2020 resident population from the 2020 census.

Population is projected to reach a high of nearly 370. Chart and table of u.s.