Alzheimer's Prevalence: Hotspots Identified in U.S. Counties

New research reveals that the eastern and southeastern regions of the United States have the highest rates of Alzheimer's dementia. Among counties with populations of 10,000 or more people aged 65 and older, Miami-Dade County in Florida, Baltimore in Maryland, and the Bronx in New York have the highest prevalence of Alzheimer's at 16.6%. Demographics, such as a higher percentage of people over 85 and a larger Black and Hispanic population, may contribute to these high rates. The county-level data can aid in better allocation of resources for Alzheimer's care. Maryland, New York, Mississippi, and Florida have the highest prevalence of Alzheimer's among states.