4 states see double-digit jobless rates in Jan.

WASHINGTON — Four states — California, South Carolina, Michigan and Rhode Island — registered unemployment rates above 10 percent in January, and the national rate is expected to hit double digits by year-end.

The U.S. Labor Department's report on state unemployment, released Wednesday, showed the increasing damage inflicted on workers and companies from a recession, now in its second year. Some economists now predict the U.S. unemployment rate will hit 10 percent by year-end, and peak at 11 percent or higher by the middle of 2010.

In December, only Michigan had a double-digit jobless rate. One month later, four states did and that doesn't count Puerto Rico, which saw its unemployment rate actually dip to 13 percent in January, from 13.5 percent in December.

California's unemployment rate jumped to 10.1 percent in January, from 8.7 percent in December, as jobs have disappeared in the construction, finance and retail industries.

Michigan's jobless rate jumped to 11.6 percent in January, the highest in the country. The second-highest jobless rate was South Carolina at 10.4 percent. Rhode Island was next at 10.3 percent, which marked an all-time high for the state in federal records dating to 1976. California rounded out the top four.

Forty-nine states and the District of Columbia registered unemployment rate increases. Louisiana was the only state to record a monthly drop. Its unemployment rate fell to 5.1 percent in January from 5.5 percent in December.

The U.S. unemployment rate, released last week, rose to 8.1 percent in February, the highest in more than 25 years.

Employers are laying off workers, holding hours down and freezing or cutting pay as the recession eats into sales and profits.

Disappearing jobs and evaporating wealth from tanking home values, 401(k)s and other investments have forced consumers to retrench, driving companies to shrink their work forces. It's a vicious cycle in which all the economy's problems feed on each other, worsening the downward spiral.

And more layoffs are on the way. National Semiconductor Corp. said Wednesday it will lay off 1,725 employees, more than one-quarter of its work force, after third-quarter profits fell 71 percent.