the second-fastest growing metropolitan area in the United States, trailing Greeley, Colorado . The three fastest-growing counties from 2000 to 2010 were Wasatch County (54.7%), Washington County (52.9%), and Tooele County (42.9%). However, Utah County added the most people (148,028). Between 2000 and 2010, Saratoga Springs (1,673%), Herriman (1,330%), Eagle Mountain (893%),