Julie Zissimopoulos has spent years tracking what dementia actually costs the country, not the number insurers see, but the real one. Her latest figure, published this year through the Alzheimer’s Association, puts the total at $818 billion in 2026.
That number is not evenly split. Medical and long-term care costs, the doctor visits, the nursing home stays, the medications, land at $222 billion. Medicare and Medicaid pick up about 70% of that, or $154 billion. Families cover the remaining $46 billion out of their own pockets.
The bigger figure sits somewhere no insurance company will ever touch. Researchers put a $320 billion value on the part that isn’t billed anywhere: the declining independence, the lost memory, the lost ability to manage a day alone. Add another $15 billion in stress related costs that caregivers absorb just from carrying the weight of it, year after year.
5.7 million Americans are living with dementia this year. Another 5.2 million are caring for them without pay, and together they put in 6.8 billion hours of unpaid care, worth an estimated $237 billion if anyone were writing that check.
What the Number Actually Measures
Zissimopoulos and her team at the University of Southern California built the estimate to be comprehensive and repeatable, not a one time snapshot. The point, she told USC’s Mann School of Pharmacy, is that transparent annual figures can guide decisions about where resources actually need to go, for families as much as for policymakers.
She also expects the total to keep climbing. The dementia population is set to grow substantially in the coming years, and none of the underlying pressure, an aging population, a caregiving workforce stretched thin, is easing up anytime soon.
For a family weighing whether a parent can stay home safely, or whether round the clock help is even close to affordable, this is the number that tends to get left out of the conversation until the decision has already been made for them.
