The Riverside-San Bernardino-Ontario area in Southern California posted the highest jobless rate in October, at 11.7 percent, among large metropolitan areas with populations of 1 million or more, the U.S. Bureau of Labor Statistics reported today. The Las Vegas area in Nevada posted the second-highest rate at 11.1 percent.

Among large metropolitan areas, Oklahoma City posted the lowest jobless rate in October at 4.9 percent.

Among metropolitan areas of all sizes, Yuma, Ariz., and El Centro, Calif., recorded the highest unemployment rates in October at 29.8 and 28.1 percent, respectively. Bismarck, N.D., registered the lowest unemployment rate at 2.2 percent.