Florida, Rhode Island and Nevada were among six states to post record jobless rates in June.
In all, the government's latest data showed 38 states and the District of Columbia posted an increase in unemployment from the previous month.
Fifteen states and the District of Columbia surpassed the national unemployment rate of 9.5 percent
On the bright side, five states reported a decrease in jobless rates, while seven had no change.
Michigan had the highest rate—15.2-percent—becoming the first state in 25 years to break that level. (West Virginia was the last in 1984.)
Michigan’s job losses are mainly the result of the continued restructuring of the auto industry, said Rick Waclawek, director of the state's Department of Energy, Labor & Economic Growth's Bureau of Labor Market Information and Strategic Initiatives.
Both Chrysler and General Motors filed for bankruptcy protection this year, reducing jobs in the state. General Motors announced last week it was emerging from bankruptcy, as did Chrysler.
“Right sizing the auto sector and its impact on manufacturing jobs have pushed Michigan's rate near levels it hasn't seen since 1982,” said Waclawek. The state reached a historical high in November 1982 when unemployment hit 16.9 percent, according to the Bureau of Labor Statistics.