A shocking statistic. Of the 12 metropolitan areas in the US with over 15% unemployment, 10 are in California, and this is because the construction industry has taken a severe hit. It lost 74,000 jobs in the 12 months ending in June 2010. From June 2006 to June 2010, this industry in California lost 43% or about 402,000 jobs. And the construction industry is still shrinking there. One reason why the unemployment rate in California is 12.3%. The overbuilding during the boom makes it that much harder to rebuild. The construction industry has been hard hit in Los Angeles and Riverside metro areas and in Napa and Solano counties.