Hibbing is a city in Saint Louis County, Minnesota, United States. The population was 16,361 at the 2010 census. The city was built on the rich iron ore of the Mesabi Iron Range. At the edge of town is the largest open-pit iron mine in the world, the Hull–Rust–Mahoning Open Pit Iron Mine. U.S. Highway 169, State Highway 37, State Highway 73, Howard Street, and 1st Avenue are five of the main routes in Hibbing.