The number of people experiencing homelessness served by California's homelessness response system (Continuums of Care) increased from 188,000 in 2017 to 255,000 in 2020. This quick reference guide looks at available data on people experiencing homelessness in California and at their hospital and emergency department use.

Using the most recent data available, this Almanac provides an overview of mental health statewide: disease prevalence, suicide rates, supply and use of treatment providers, and mental health in the criminal justice system.

California's health care system is moving toward acknowledging substance use disorders (SUDs) as chronic illnesses, yet only about 10% of people with an SUD in the last year received treatment. Substance Use in California: Prevalence and Treatment provides an overview of substance use and addiction in the state.

Nearly half a million babies were born in California in 2018, representing one in eight of all births in the US. While the number of births has declined since 2000, childbirth remains the number one reason for hospitalization in the state. Maternity Care in California: A Bundle of Data provides an overview of the delivery of maternity care in California and compares the state’s performance by demographic groups, over time, and provides a comparison to national numbers.

While California continues to make progress on the quality of care provided to women during their pregnancies and deliveries, there is room for improvement.