​​Alzheimer's Disease Data, Statistics, and Reports

​​​​Explore fact sheets and reports that provide currently available surveillance information on Alzheimer’s disease. These resources can be useful for prioritizing and evaluating public health interventions, and are intended to build awareness among the general public and support local service providers. ​

California Alzheimer's Disease and Related Dementias Dashboards

The Chronic Disease Control Branch has developed two dashboards: the California Alzheimer's Disease and Related Dementias (ADRD) Dashboard and the California ADRD Prevalence ArcGIS Maps Dashboard. These dashboards are interactive tools that show important information about ADRD across the state. De-identified data show trends in how common ADRD is, how often people use hospitals and emergency department services, and how different groups are ​affected. Th​e maps highlight where ADRD is more common across the state by county. Together, these tools help health professionals and advocacy partners better understand ADRD in their communities.​

• ​​​California Alzheimer's Disease and Related Dementias Dashboards​
  

​Facts and Figures

Alzheimer's Disease and Related Dementias Facts and Figures in California: Current Status and Future Projections, January 2021

To help California better meet the growing demand for support and services that meaningfully address the needs of individuals living with Alzheimer's disease and related dementias, CDPH was called upon to update the 2009 Alzheimer's Disease and Related Dementias Facts and Figures in California: Current Status and Future Projections (PDF, 1.26 MB)​ per Senate Bill 1292 (H​​ueso) - California Health and Safety Code Section 125283. Drawing information from a variety of data sources, the updated Alzheimer's Disease and Related Dementias Facts and Figures in California: Current Status and Future Projections, January 2021 (PDF, 3.0 MB)​ report details the broad and significant implications that the impending increased prevalence of Alzheimer's disease and related dementias will have on California's businesses, public programs, and affected families. This report is a vital update providing an accounting of the dramatic impacts and effects of Alzheimer's disease and related dementias that includes essential data by race, ethnicity, gender, sexual orientation, and socioeconomic status.

Alzheimer's Facts and Figures

The Alzheimer's Association's 2021 Alzheimer's Disease Facts and Figures report (PDF) is a statistical resource for U.S. data related to Alzheimer's disease, the most common cause of dementia. Background and context for interpretation of the data are contained in the Overview. Additional sections address prevalence, mortality and morbidity, caregiving and use and costs of health care and services.

The accompanying special report, Race, Ethnicity and Alzheimer's in America (PDF), examines the perspectives and experiences of Asian, Black, Hispanic, Native and White Americans in regard to Alzheimer's and dementia care. The report also examines the devastating impact the COVID-19 pandemic is having on people living with Alzheimer's and their caregivers.

National - Alzheimer's Association 2025 Alzheimer's Disease Facts and Figures Report (PDF, 6.5 MB)​

California - 2025 Alzheimer's Disease Facts and Figures Infographic CA (PDF)​

Behavioral Risk Factor Surveillance System Data

This section offers tailored fact sheets and infographics using data from the Behavioral Risk Factor Surveillance System (BRFSS) on subjective cognitive decline and caregiving in California. They provide currently available surveillance information on Alzheimer's disease.

Subjective cognitive decline. Percentage of adults aged 45 and older who report worsening memory problems in the past year.

Caregiving. Percentage of adults who assist or care for a friend or family member with a health problem or disability.

Developed by the California Alzheimer's Disease Program (ADP):

• Fact Sheet: 2023 California Subjective Cognitive Decline Prevalence by Demographics (Gender, Age, Race, Income, and Education) (PDF)​
  
• Fact S​heet: 2021 California Caregivers of Persons Living with Alzheimer's Disease, Dementia, or Other Cognitive Impairment Disorder (PDF, 1 MB)
  

Developed by Alzheimer's Association:

• Fact Sheets on Alzheimer's and Dementia in California​
  

Developed by the Centers for Disease Control and Prevention (CDC) & Alzheimer's Association:

• 2022 California Behavioral Risk Factor Surveillance System (BRFSS) Subjective Cognitive Decline Data (PDF) 
• 2021 California Behavioral Risk Factor Surveillance System (BRFSS) Caregiver Data (PDF)

Centers for Disease Control and Prevention

Centers for Disease Control and Prevention: National Center for Health Statistics

Centers for Disease Control and Prevention: Alzheimer's Disease and Healthy Aging Data Portal

Publications and Reports

California Master Plan for Aging, January 2021

The California Master Plan for Aging (PDF) outlines five bold goals, 23 strategies, and 100+ action-ready initiatives to build a California for All Ages by 2030. It also includes a Data Dashboard for Aging to measure progress and a Local Playbook to drive partnership that help meet these goals together.

The Master Plan calls on all California communities to build a California for All Ages: for older Californians currently living through the many different stages of the second half of life; for younger generations who can expect to live longer lives than their elders; for communities of all ages – family, friends, neighbors, coworkers, and caregivers –surrounding older adults.

Ten Recommendations for Alzheimer's Prevention, Preparedness, and the Path Forward, November 2020

In 2019, Governor Gavin Newsom formed the Task Force on Alzheimer's Disease Prevention, Preparedness and the Path Forward to develop recommendations on how California can prevent and prepare for the growing number of Alzheimer's cases and forge a path forward for families. Led by Maria Shriver, Former First Lady of California and a longtime advocate for women and people living with Alzheimer's, the Task Force is made up of a diverse group of consumers, caregivers, neuroscientists, researchers, health care providers, innovators, family members, education systems, private-sector leaders, and media professionals. The final Recommendations for Alzheimer's Prevention, Preparedness, and the Path Forward (PDF, 2.5 MB)​ are a roadmap on how California proposes to address Alzheimer's disease prevention and the state plan for Alzheimer's disease.

​ Deaths from Alzheimer's Disease — United States, 1999–2014, Centers for Disease Control and Prevention: Morbidity and Mortality Weekly Report (MMWR)

Interventions to Prevent Age-Related Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer's-Type Dementia​​​

The Lancet Commission: Prevention and Management of Dementia: A Priority for Public Health 

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