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Business Environment Profiles - United States

Number of adults aged 20 to 64

Published: 16 July 2025

Key Metrics

Number of adults aged 20 to 64

Total (2025)

195 Million

Annualized Growth 2020-25

0.1 %

Definition of Number of adults aged 20 to 64

The data for this report, including forecasts, are sourced from the US Census Bureau and IBISWorld. The estimates provided refer to the population as of July 1 for that year. The forecasts in this report assume that fertility rates will continue to decline.

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Recent Trends – Number of adults aged 20 to 64

In 2025, the number of adults aged 20 to 64 is estimated at 194.9 million, representing a negligible increase of 0.07% over the previous year, reflecting continued stagnation in this demographic segment. The slow growth rate in 2025 is primarily attributed to the transition of the baby boomer generation out of the 20 to 64 age group and into the 65 and older cohort. Additionally, federal policies targeting undocumented immigrants in 2025 have placed downward pressure on the number of people within this age group.

Between 2020 and 2025, the number of adults aged 20 to 64 remained largely flat, increasing from 194.0 million to 194.9 million, marking a compound annual growth rate of just 0.1%. The early part of the period experienced marginal declines, with the population decreasing slightly in 2021 and 2022. Growth resumed from 2023 onward but was modest, peaking at 0.3% in 2024. The slowdown throughout the period corresponds with broader demographic trends, most notably the aging of the baby boomer cohort. As this sizable generation exited the economically active age bracket, there was no similarly-sized influx from younger generations to offset this shift, resulting in muted growth.

Immigration policy trends have also played a role in dampening expansion. Reduced levels of net migration, particularly from policy changes aimed at limiting undocumented immigration, further constrained growth in the working-age population. The end of temporary protection statuses for specific immigrant groups in 2025 also contributed to lower numbers, reducing potential additions to the demographic group.

The five-year period from 2020 to 2025 thus exhibited stagnation in the number of adults aged 20 to 64, shaped by the demographic exit of the baby boomers and reinforced by shifts in immigration policy. As a result, the working-age population did not experience substantial growth, and the trend points toward an environment of slow or negligible increases going forward.

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5-Year Outlook – Number of adults aged 20 to 64

In 2026, the number of adults aged 20 to 64 is projected to rise slightly to 195.1 million, an in...

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