In which state is the city of Detroit located?

In which state is the city of Baltimore located? In which state is the city of Hagerstown located? In which state is the city of Worcester located? In which state is the city of Lowell located? In which state is the city of Grand Rapids located? In which state is the city of Ann Arbor located? In which state is the city of Flint located? In which state is the city of Kalamazoo located?