UPDATED 2025 Alzheimer’s Disease: Current Facts & Statistics
There are over 400 types of dementia, but the most common cause of dementia is Alzheimer’s disease, which accounts for approximately 60–70% of all dementia cases. (World Health Organization)
Other notable forms of dementia include vascular dementia, Lewy body dementia, frontotemporal dementia, and early-onset dementia.
Prevalence & Projections
- As of 2024, an estimated 6.9 million Americans age 65 or older are living with Alzheimer’s dementia. (Alzheimer’s Association)
- The number of Alzheimer’s cases among older adults is expected to nearly double by 2060, reaching around 13.8 million. (PubMed)
- Alzheimer’s is a leading cause of death in the U.S. For people over age 65, it ranked fifth in 2021. (Alzheimer’s Association)
- From 2000 to 2021, deaths recorded as Alzheimer’s increased by 141%, while deaths from heart disease declined slightly. (Alzheimer’s Association)
Because Alzheimer’s is often underdiagnosed or not listed on death certificates, the true numbers may be even higher.
Risk Factors & Genetics
Age remains the most significant risk factor. The prevalence of Alzheimer’s rises steeply with age:
- Ages 65–74: ~3 %
- Ages 75–84: ~13–17 %
- Age 85+: ~30-33 % (BrightFocus Foundation)
However, Alzheimer’s is not a normal part of aging. (CDC)
Genetics also play a role. The APOE gene has three common alleles: e2, e3, and e4. Inheriting one or more APOE-ε4 alleles is associated with higher Alzheimer’s risk, though having no family history does not eliminate risk. (Alzheimer’s Association)
If a first-degree relative (parent or sibling) has Alzheimer’s, your risk is higher. Shared environmental and lifestyle factors—such as diet, exercise, sleep, and exposure to toxins—also influence risk.
Modifiable Lifestyle Factors
While you can’t completely prevent Alzheimer’s by lifestyle changes, substantial evidence supports that healthy behaviors can reduce the risk or delay onset:
- Stay physically active
- Manage chronic conditions (diabetes, hypertension, obesity)
- Avoid or quit smoking
- Engage in cognitively stimulating activities and lifelong learning (Alzheimer’s Association)
Economic & Caregiving Impact
- In 2024, total U.S. costs for Alzheimer’s and other dementias (health care, long-term care, hospice) are estimated at $360 billion. (Alzheimer’s Association)
- Family members and unpaid caregivers provided nearly $350 billion in care in 2023. (Alzheimer’s Association)
- Alzheimer’s patients generate far higher medical costs. For older adults, Medicare payments are nearly three times more than for those without dementia, and Medicaid costs are many times higher. (PubMed)
Broader Societal Impact
Alzheimer’s places heavy burdens on state budgets, healthcare systems, community services, and unpaid caregivers. The financial, emotional, and logistical impacts ripple across families and communities, making preparation and planning crucial.
We help families prepare legal, financial, and caregiving plans for serious illnesses like Alzheimer’s. If you’d like to discuss how this applies to your situation or learn more about available resources, please contact us to schedule a meeting.
