Cochrane is a town in the Calgary Metropolitan Region of Alberta, Canada. The town is located 18 km west of the Calgary city limits along Highway 1A. Cochrane is one of the fastest-growing communities in Canada, and with a population of 32,199 in 2021, it is one of the largest towns in Alberta. It is part of Calgary's census metropolitan area and a member community of the Calgary Metropolitan Region Board. The town is surrounded by Rocky View County.