The Riverside-San Bernardino-Ontario area in Southern California posted the highest unemployment rate in August, 9.2%, among metropolitan areas with a population of 1 million or more, the U.S. Bureau of Labor Statistics reported today. The Detroit area, which had posted the highest jobless rate among large metro areas for some time, reported the second-highest at 8.8%.

Oklahoma City registered the lowest unemployment rate among large metropolitan areas at 3.8%.

Sioux Falls SD reported the lowest unemployment rate among metropolitan areas of all sizes in August at 2.6%. El Centro CA, another area in Southern California, posted the highest jobless rate of all in August at 24.7%.

Overall, 354 of 369 metropolitan areas reported higher unemployment rates in August than a year earlier. Thirteen reported lower jobless rates, and two were unchanged.