Unemployment rose in 46 states and Washington, D.C., in March, with Michigan leading the way at 12.6%, the government said Friday.
The most dramatic increase was in Oregon, which went from 10.7% to 12.1% - the second-highest among the states.
Oregon was followed by South Carolina, at 11.4% in March, and California, at 11.2%.
The Michigan job market has been hit hard by the battered auto industry. The Big Three carmakers have shed tens of thousands of jobs because of giant corporate losses and waning demand for vehicles.
In Oregon, employment is heavily reliant on the lumber industry, which has suffered from the decline in homebuilding in California and elsewhere.