Troy is a city in Oakland County of the U.S. state of Michigan. It is a suburb of Detroit. As of the 2000 census, the city had a total population of 80,959, the 12th largest city in Michigan by population. Troy has become a business and shopping destination in the Metro Detroit area, with numerous office centers and the upscale Somerset Collection mall. Troy apartments for rent comparison page shows most up to date rent information on Troy apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.