I've had several of those. The actually creepy part is a part where it says "The last person in (where I live) won a (random prize, tablet, computer, gift card, something like that". I never have my location on, ever. I'm paranoid (as in, I have tape on my computer camera). Yet sites still know my location, including Google for some reason which knows my address without me putting it in. For some reason, my school's website blocker requires location (why does a website blocker need location?)
Anyway, if anyone has never had the scam pop up on their screen, this is what it looks like (I just googled the spam and this was under images, this is not my location)