We live 30 miles from Canada. At the border they look at your passport and ask lots of questions. Where are you going? Who are you visiting? How do you know them? How long are you staying? Are you carrying anything across the border you shouldn't be, etc.
On our return trip from Toronto a few weeks back we answered that we were from/headed back to Detroit. A question or two later I said- We just moved to Chesterfield from Arizona. The guy in the booth turned, stared at us and replied-Chesterfield is not Detroit. It's not? Oh.
I guess it like saying you live in Salt Lake City when really you live in Sandy Utah...maybe. Don't mess with border patrol. Chesterfield is NOT north east Detroit.