From our early days as DetrAaoit Savings Fund Institute, Comerica has enjoyed over 160 years of growth. North American Presence In addition to Texas, Comerica Bank locations can be found in Arizona, California, Florida and Michigan, with select businesses operating in several other states, as well as in Canada and Mexico. Comerica's reach extends beyond the U.S. border. Our presence in North America includes a wide variety of businesses and locations across the continent.