More than 630,000 Oklahomans suffer from some form of mental illness, ranking Oklahoma as one of the worst states in the nation for overall mental health, according to a new report released by the federal Substance Abuse and Mental Health Services Administration.

Oklahoma trails only West Virginia for the percentage of residents with a severe mental illness, and only Utah in the percentage of residents suffering from mental illness of any kind.

“The report is startling,” said Oklahoma Mental Health and Substance Abuse Services Commissioner Terri White. “Oklahoma has the biggest problem in the nation and is struggling with these things that are treatable.”

Among those ages 18 and older, the rate of serious mental illness across the nation averaged 4 percent, ranging from 3.1 percent in New Jersey to 5.5 percent in West Virginia. In Oklahoma, 5.24 percent of residents were found to suffer from diseases such as schizophrenia, major depression, bipolar or anxiety disorders.