Missoula County remains state’s 2nd most populous, but Gallatin, Flathead make gains
Missoula County added more than 8,100 residents over the past seven years, maintaining its place as Montana's second most populous county, according to U.S. Census estimates released last week.
Yet while Missoula County grew at 7.4 percent from April 1, 2010 to July 1, 2017, Gallatin County's population surged 20...