I'm consdering taking a new job in Michigan - will I need to join a nursing union there?

Some hospitals in Michigan have unions but not all.

It depends on where you work. The University of Michigan Medical Center is unionized, for example, but the hospital across town is not. Assuming you are looking in a cute care, take a look at the health systems near where you plan to live and see which are union and which are not.

I hope you can join one! They increase quality of care as well as salaries and benefits in the surrounding area :)