Alzheimer Disease

Alzheimer Disease is indexed under Neurological & Neurodegenerative, Dementia. Also known as AD, Alzheimer's, Alzheimer's dementia.

US prevalence

~6.9 million aged 65+ (2024 estimate) Source: Alzheimer's Association Facts and Figures 2024. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

G30.0, G30.1, G30.9

Typical onset

Primarily >65; early-onset (<65) ~5-10% of cases

Course

progressive

Body systems

neurological

Sex differences

~2/3 of cases are women (partly due to longer lifespan)

Racial and ethnic differences

Black Americans ~2x and Hispanic Americans ~1.5x higher risk vs white

What this page does not establish

These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.

Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.

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