Any mental illness (AMI) is defined as having a diagnosable mental, behavioral, or emotional disorder, other than a developmental or substance use disorder, assessed by the Mental Health Surveillance Study (MHSS) Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders—Fourth Edition—Research Version—Axis I Disorders (MHSS-SCID), which is based on the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). Three categories of mental illness severity are defined based on the level of functional impairment: mild mental illness, moderate mental illness, and serious mental illness. AMI includes individuals in any of the three categories.
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Any mental illness in the past year among U.S. adults 2022-2023, by state
As of 2022/2023, the state of California had almost over 6.3 million adults who reported having some mental illness within the preceding 12 months, the highest number of any U.S. state. This statistic represents the number of adults in the U.S. with any mental illness in the past year in 2022 and 2023, by state.
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SAMHSA. (April 16, 2025). Number of U.S. adults with any mental illness in the past year in 2022 and 2023, by state (in thousands) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 31, 2026, from /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/
SAMHSA. "Number of U.S. adults with any mental illness in the past year in 2022 and 2023, by state (in thousands)." Chart. April 16, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 31, 2026. /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/
SAMHSA. (2025). Number of U.S. adults with any mental illness in the past year in 2022 and 2023, by state (in thousands). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 31, 2026. /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/
SAMHSA. "Number of U.S. Adults with Any Mental Illness in The past Year in 2022 and 2023, by State (in Thousands)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 16 Apr 2025, /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/
SAMHSA, Number of U.S. adults with any mental illness in the past year in 2022 and 2023, by state (in thousands) ÌÇÐÄÆÆ½â°æ, /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/ (last visited July 31, 2026)
Number of U.S. adults with any mental illness in the past year in 2022 and 2023, by state (in thousands) [Graph], SAMHSA, April 16, 2025. [Online]. Available: /statistics/723787/mental-illness-in-the-past-year-among-us-adults-by-state/