Study highlights regional differences in dementia rates across U.S.
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A recent study published in the journal Alzehimer’s & Dementia examining dementia among older U.S. adults found notable regional variations, with the highest incidence in the Southeast, particularly North Carolina, South Carolina, Georgia, and Florida, and the lowest in the Mid-Atlantic states, including Delaware, Maryland, Pennsylvania, Virginia, West Virginia, New Jersey, and Washington, D.C. Researchers suggest these differences may reflect a combination of demographic, cardiovascular health, and lifestyle factors.
Source
Dhana K, Beck T, Desai P, Wilson RS, Evans DA, Rajan KB. Prevalence of Alzheimer's disease dementia in the 50 US states and 3142 counties: A population estimate using the 2020 bridged-race postcensal from the National Center for Health Statistics. Alzheimers Dement. 2023 Oct;19(10):4388-4395. doi: 10.1002/alz.13081. Epub 2023 Jul 17. PMID: 37458371; PMCID: PMC10593099.
Additional Reading
https://fortune.com/well/2025/06/12/dementia-highest-in-these-american-study/
https://www.newsweek.com/where-you-live-may-affect-risk-dementia-study-2082739