If you are asking what you should enter for the address on your tax return, you should use your permanent address in Michigan if you have one. That is the address that the IRS would use to contact you about your tax return if necessary.
If you are asking about something other than the address that will be on your tax return, use the zip code that is on the tax form you are entering or give a little more information about what you are asking if your question was misinterpreted.
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