Alzheimer's disease and related dementias will cost the United States an estimated $818 billion this year, according to a USC-led analysis published June 24 in Alzheimer's & Dementia: The Journal of the Alzheimer's Association. What separates that figure from more familiar estimates is what it counts: not just medical bills and long-term care, but the diminished quality of life experienced by people with dementia, the earnings lost by both patients and their care partners, and the vast amount of unpaid care delivered by family and friends.
Those categories are routinely left out of national cost tallies, which tend to track dollars that pass through the health care system. The result is an accounting that treats a daughter who cuts back to part-time work, or a spouse providing round-the-clock supervision, as economically invisible. The USC team's model puts a price on that labor and loss, and the total rises accordingly.
The estimate comes from the U.S. Cost of Dementia Project, a multi-year effort funded through a cooperative agreement with the National Institute on Aging to quantify the country's annual dementia costs. This is the project's second report, and the researchers say the 2026 figure reflects methodological improvements over their inaugural estimate.
For caregivers, the number is less a surprise than a validation of what they already absorb quietly. For policymakers, it reframes dementia as a burden borne substantially by households rather than by insurers and health systems alone - a distinction that matters when weighing support for family caregivers. The researchers plan to keep refining the model in future annual reports.