U.S. dementia care spending by state: 2010-2019.

Introduction: Dementia is the fourth largest cause of death for individuals 70 years of age and older in the United States, and it is tremendously costly. Existing estimates of the indirect costs of dementia are dated and do not report on differences across the United States.

Methods: We used data from multiple surveys to create cost estimates and projections for informal dementia caregiving at the U.