The 7 County Arrowhead Region of Aitkin, Itasca, Koochiching, Carlton, Cook, Lake, and St. Louis counties make up Healthy Northland. Click the links below to learn more about each community Aitkin CountyCarlton CountyCook CountyDuluth Metropolitan AreaItasca CountyKoochiching CountyLake CountySt. Louis County Other ways to keep up with the communities: Healthy Northland Newsletter Healthy Northland Facebook Page