I once had a stranger guess my origins as a location 3,000 miles from where I grew up. It happened to be where my parents grew up.
I've had the same thing happen to me. I lived in England for about a year, twenty odd years ago. On several occasions, complete strangers would say, "Oh, you're from California."
When I'd ask them how they guessed that, they'd just laugh and tell me that it was obvious by my accent. That flipped my noodle at first, because I'd never considered that we Californians had much of any kind of 'accent'.
Now that I'm in Texas, some people still correctly peg me as being from Cali.
So, do you then happen to be a Taurus, Leo, Scorpio or Aquarius? ("fixed" signs of the zodiac, as contrasted to "cardinal" or "mutable" signs)