Towns include: Tooele
Job growth (2000-2006): 112.5%
Since its inception in 1850, Tooele had always been a mining area - but now scientific and technical fields are blossoming too. The county - one of the first in Utah - is near full employment and wages are growing at an above-average rate. Helping out is a plan by Pittsburgh-based Allegheny Technologies Inc. to build a $325 million metals plant that will employ 150 people at an average salary of $45,000.