United States Of America Population 2024 By Age. Census bureau today released a downloadable file containing estimates of the nation’s resident population by sex and single year of age as of july 1,. By 2100, the united states will be home to 366 million people, according to census bureau projections.

Census bureau today released a downloadable file containing estimates of the nation’s resident population by sex and single year of age as of july 1,. In contrast, the south had the lowest proportion of adult population (77.5%) and the highest proportion of young population (22.5%).