People in South Dakota are the least likely in the nation to be depressed, according to a new study by a group called Mental Health America.

The report found that Utah is the most depressed state.

The rest of the 10 least depressed states were Hawaii, New Jersey, Iowa, Maryland, Minnesota, Louisiana, Illinois, North Dakota and Texas.

The other most depressed states were Wyoming, Ohio, Missouri, Idaho, Oklahoma, Nevada, Rhode Island, Kentucky and West Virginia at No. 50 (the District of Columbia was counted as a separate state).

The results were based on rates of depression and suicide.

"While a number of factors including biology and environment impact an individual's mental health, this study shows that states can significantly improve their populations' mental health status by adopting policies that expand access to mental health treatments," said Dr. David Shern, the group's president.

A news release said the group found that factors such as the number of mental-health workers and laws regarding health insurance can help determine suicide rates in a given state.

Rates of depression varied from around 7 percent to more than 10 percent

Shern said that no state should be satisfied with its current status.