What Michigan county northwest of Detroit contains a city that is a northern suburb of Detroit?
Oak Park, Michigan Oak Park is a city in south Oakland County of the U.S. state of Michigan. It is a northern suburb of the city of Detroit, which is located in neighboring Wayne County, and part of its metropolitan area. As of the 2010 census, the population of Oak Park is 29,319.
Milan, Michigan Milan is a city in Monroe and Washtenaw counties in the U.S. state of Michigan. The population was 5,836 at the 2010 census. About 60% of the city's area and 75% of its residents are located on the Washtenaw County side adjacent to York Charter Township in Washtenaw County; while 40% percent of the city's area and 25% of its residents are located on the Monroe County side adjacent to Milan Township.