California Health Insurers, Enrollment Almanac — 2025 Edition

In 2023, California health insurers covered 36.2 million enrollees. Of those, 13.9 million were commercial enrollees, 16.4 million were public managed care enrollees, and 5.9 million were enrolled through administrative services only arrangements for self-insured employers.

This quick reference guide shows enrollment by regulator, market, and insurer. The companion data file contains California enrollment data for 2012 to 2023.

These materials are part of CHCF’s California Health Care Almanac, an online clearinghouse for key data and analyses describing the state’s health care landscape. To see past editions of this almanac, contact us.

Authors & Contributors

Katherine Wilson

Katherine Wilson is an independent consultant specializing in health insurance markets and health care costs. She is the author of numerous publications and reports, including CHCF’s series of reports on California health insurers.