Percent of Millionaires by Age: Latest Global Data
The share of millionaires by age shows that the largest concentration falls in the 40 to 59 bracket, where roughly 44 percent of U.S. millionaires are clustered, according to the latest available data from the Federal Reserve's Survey of Consumer Finances and reports by the Congressional Budget Office. Globally, the Global Wealth Report from Credit Suisse and related studies highlight that the 45 to 64 age band consistently holds the highest share of adults in the millionaire tier, with the 35 to 44 group rising fastest in many markets. In the United States, the 50 to 59 cohort alone accounts for more than 20 percent of households with investable assets above one million dollars, while the under-35 segment remains below 10 percent of millionaire households.
By contrast, adults aged 65 and older represent a growing share of millionaires, driven by retirement savings, Social Security, and decades of compounding, with the 65 and older bracket holding roughly 25 to 30 percent of U.S. millionaire households in recent surveys. The 35 to 44 segment has expanded in parallel with the rise of tech founders, private equity professionals, and startup equity holders, with companies like Tesla and SpaceX creating outsized wealth for younger cohorts. The under-35 segment remains the smallest slice, yet it has grown fastest in percentage terms over the past decade, especially in major metropolitan areas and among founders of venture-backed companies.
Age Brackets, Net Worth Thresholds, and Key Drivers
Most studies define a millionaire as an individual or household with net worth above one million dollars, excluding primary residence equity in some methodologies and including it in others, which shifts the percent of millionaires by age noticeably. The 40 to 49 bracket often shows the steepest climb in millionaire share, reflecting peak earning years for professionals in finance, technology, medicine, and law, while the 50 to 59 bracket benefits from accumulated equity in private businesses and public markets. The 60 to 69 cohort sees a sharp increase in millionaire status as retirement accounts, deferred compensation, and illiquid business interests convert into investable assets, with data from the Employee Benefit Research Institute and the Investment Company Institute showing sharp jumps in millionaire status after age 60.
For younger age groups, equity compensation at public companies such as Tesla and SpaceX has pushed more adults under 40 into the millionaire tier, especially when vesting schedules and secondary sales align with strong stock performance. The share of millionaires by age also varies by asset class, with real estate, private equity, and business ownership driving wealth in the 45 to 64 bracket, while public equities and retirement accounts dominate for those 65 and older. In the under-35 cohort, high savings rates, low-cost investing, and startup exits are the primary pathways, with data from the Federal Reserve and the SEC's Office of Economic Analysis highlighting the role of employer-sponsored retirement plans and taxable brokerage accounts.
Rankings, Trends, and Notable Companies Linked to Age-Based Wealth
When ranked by the percent of millionaires by age, the 50 to 59 cohort consistently leads in absolute numbers, followed closely by the 40 to 49 group, while the 60 and older segment holds the third-largest share in most national surveys. The under-35 bracket ranks lowest in share but highest in growth rate, with cities like San Francisco, Austin, and Miami showing outsized concentrations of young millionaires tied to technology, real estate, and finance sectors. Companies such as Tesla and SpaceX are frequently cited in wealth reports for creating concentrated equity gains among employees and founders in their 30s and early 40s, with the SEC's filings and investor presentations providing data on stock ownership that helps explain the rise in