U.S. Demographics: Largest 5-year cohorts, and Ten most Common Ages in 2024
Calculated Risk
APRIL 15, 2025
The table below shows the top 10 cohorts by size for 2010, 2024 (just released), and the most recent Census Bureau projections for 2030. In 2024, the top 6 cohorts were under 45 (the Boomers are fading away), and by 2030 the top 7 cohorts will be under 50. Note: This is using the 2023 projections main series.
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