New data from the Centers for Disease Control and Prevention reveals that roughly 8 percent of Americans went without health insurance in 2025, a figure that barely budged from the previous year. But beneath that flat headline, the numbers tell a more troubling story: the total number of uninsured individuals climbed by about 800,000, including 300,000 children, according to the agency's National Health Interview Survey.
The CDC's preliminary estimates offer the first comprehensive snapshot of coverage for 2025. Among working-age adults (18 to 64), 11.6 percent were uninsured at the time of the interview, 21 percent relied on public programs like Medicaid or military plans, and 69 percent held private insurance.
While the overall uninsured rate remains below its 2019 level, the uptick in raw numbers signals a shift that experts warn will accelerate. The Trump administration is pushing sweeping changes to Medicaid, and the enhanced premium tax credits from the Affordable Care Act are set to expire. Combined with regulatory overhauls to the insurance exchanges, these moves are expected to drive a sharp increase in the number of Americans without coverage.
The Congressional Budget Office projects that roughly 14 million additional people will be uninsured by 2034 as a result of the Medicaid and exchange eligibility changes embedded in the One Big Beautiful Bill Act tax cut law, along with the expiration of the enhanced subsidies. That projection underscores the long-term impact of policy decisions now taking shape.
The Census Bureau has yet to release its American Community Survey, widely regarded as the gold standard for measuring insurance coverage. Its 2024 survey also pegged the uninsured rate at about 8 percent of all ages. However, a KFF analysis of that data found that both the number of uninsured people aged 64 and younger and the uninsured rate increased for the first time since 2019, driven largely by a drop in Medicaid enrollment.
Coverage trends among those under 65 are particularly telling, because Medicare provides near-universal coverage for seniors. The erosion of Medicaid and private insurance among younger adults and children is a leading indicator of broader system strain.
This dynamic is unfolding against a backdrop of broader demographic and economic shifts. As midsize cities outperform larger metros in population growth, the geographic distribution of the uninsured could shift, with implications for local health systems and political dynamics. Meanwhile, the political fallout from immigration cuts is already reshaping the U.S. population, as detailed in analysis of the economic and geopolitical consequences of Trump's immigration policies.
The coming years will test whether the health care safety net can withstand the combined pressures of policy retrenchment and demographic change. For now, the CDC's numbers serve as a baseline—and a warning.
