United States Of America Population 2024. The un estimates the july 1, 2024 population at 345,426,571. Meanwhile, the american population is getting older.

Population is projected to reach a high of nearly 370 million in 2080 before edging downward to 366 million in 2100. Annual population estimates, estimated components of resident population change, and rates of the components of resident population change for the united states, states,.