I recently went to Metro Airport and I noticed that the receipts from the restaurant and stores I went to had the address as Detroit. After getting home, I looked it up, and sure enough Metro Airport's address says Detroit (and so does the Marriot, & other businesses at the airport) and the zip code, 48242, is listed as Detroit.
I was just curious about the history of this, but couldn't find anything via google. So I figured I'd ask about it here. Is this just a postal service thing, or is Metro Airport considered to be in the city of Detroit? Like, do they pay city taxes? Also, anyone know the history behind the designation as Detroit?