Cochrane /ˈkɒkrən/ is a town in the Canadian province of Alberta. The town is located 18 km (11 mi) west of the Calgary city limits along Highway 1A. Cochrane is one of the fastest growing communities in Canada, and with a population of 33,328 in 2020, 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 (CMRB). The town is surrounded by Rocky View County.