California Health Reference
An up-to-date, citable snapshot of diabetes, prediabetes, high blood pressure, heart disease, and chronic-care needs across California.
Last updated October 13, 2026
These figures bring together the latest applicable statewide public-health data. Each statistic links directly to its original source and includes the year the data represents, making it easier to use responsibly in reporting, planning, and community conversations.
12.4%
The reported adult diabetes prevalence rose from 8.4% in 2011 to 12.4% in 2024.
Source: California Department of Public Health, California State of Public Health Report 20262024 data, report published February 2026
21.4%
The reported prevalence more than doubled from 8.9% in 2011 to 21.4% in 2022.
Source: California Department of Public Health, California State of Public Health Report 20262022 data, report published February 2026
23.0%
For adults ages 18 to 64, the reported prevalence was 4.4% in the same year.
Source: California Department of Public Health, California State of Public Health Report 20262024 data, report published February 2026
26.8%
An additional 6.9% were estimated to have borderline hypertension.
Source: California Department of Public Health, California State of Public Health Full Report 2024Report published 2024
37,445
Ischemic heart disease was California’s leading cause of death in the state report’s 2022 data.
Source: California Department of Public Health, California State of Public Health Summary Report 20242022 data, report published 2024
126,990
Hypertension complications were the second-leading listed cause of hospitalization in California’s 2022 data.
Source: California Department of Public Health, California State of Public Health Summary Report 20242022 data, report published 2024
3.2 million
The California Department of Public Health reports that about 1 in 9 adults had diabetes in 2021, and approximately 90% of diagnoses were type 2.
Source: California Department of Public Health, Type 2 Diabetes Program2021 data, page accessed October 13, 2026
What these numbers mean
Statistics describe a statewide picture, not an individual’s health. For patients and families, the useful next step is often a clear conversation about prevention, monitoring, medications, follow-up, and the day-to-day barriers that can make care harder to manage.
Harmony Wellness & Health provides in-person primary care in San Bernardino and telehealth across California. For people whose needs involve several providers or services, Enhanced Care Management can help create a more coordinated path.
Methodology and sources
This page summarizes published statewide figures from the California Department of Public Health. It uses the most recent applicable figure available in the cited source for each topic. Percentages and counts are reported as published, and dates identify the underlying data year when the source provides one.
Harmony Wellness & Health. “California Chronic Care Statistics.” Updated October 13, 2026. https://harmonywellnessandhealth.com/california-chronic-care-statistics
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