St. John Macomb Hospital

Warren is a city in Macomb County, Michigan. The 2010 census places the population at 134,056, making Warren the largest city in Macomb County, the third largest city in Michigan, and the largest suburb of Metro Detroit. The city is home to a wide variety of businesses, including General Motors Technical Center, the U.S. Army Detroit Arsenal, the U.S. Army TACOM Life Cycle Management Command and the Tank Automotive Research, Development and Engineering Center (TARDEC), headquarters of Big Boy Restaurants International, The Cadillac Motor Car Division of General Motors, Campbell Ewald, and Asset Acceptance.