Located in Oakland County in the Southeast Region of the state, the City of Southfield has a population of approximately 73,000 people living within 26.27 square miles. The city is a major commercial and business center in Southeast Michigan, with more than 10,390 firms and over one hundred Fortune 500 companies located within its borders. Notable companies located in Southfield include DENSO, Lear Corporation, IHS Automotive, and the Michigan headquarters locations for Beaumont Health System and Marelli. Key industries include the automotive, advanced manufacturing, software and IT, and business services— specifically call centers—industries. Southfield is also home to a myriad of medical facilities including Beaumont Health, Ascension Providence Hospital, Henry Ford Medical Center, Michigan Orthopedics, Oakland Southfield Physicians, Epic Health, Plum Hollow Center | Honor Community Health, Surgeons Choice Medical Center and Nephron Associates among others.