Us Population 2024 In Million. Population is expected to reach 335.9 million on new year's day 2024, according to the census bureau. See the current and projected population of the united states and the world by region, age, sex, and density.
See the interactive chart, summary, and data. Population is projected to reach a high of nearly 370 million in 2080 and then decline to 366 million in 2100, according to the latest census bureau projections.