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From March 2014 to March 2015, employment increased in 323 of the 342 largest U.S. counties (counties with 75,000 or more jobs in 2014). Utah County, Utah, had the largest percentage increase, with a gain of 6.7 percent over the year, compared with national job growth of 2.1 percent. Adams County, Colorado; Montgomery County, Texas; and Denton County, Texas, each had employment gains of 5.8 percent over the year.