Turns out that Sonic the Hedgehog is canonically a homeless drifter and always has been. I did not know this. I doubt you knew this?
I mean I figured he just went somewhere. Hedgehogs live in little burrows, right? Or perhaps hedges? Anyway, not Sonic, he's too fast to be tied down by concepts such as «home.» This is something I've learned due to a clarification by one of Sonic's professional story managers, who herds the hedgehog's canon like eagle-eyed Polyphemus watches his sheep.
Per Automaton, in the latest Sonic the Hedgehog Annual comic, that's your 2025 edition, the Sonic Fact File is not correct—which required a clarification from one Chris Hernandez, professional Sonic the Hedgehog lore wrangler. «Sorry to burst the bubble so late here!
This was something we caught early on but it looks like an older draft got through on accident. Sonic doesn't have a home, he's still a drifter,» said Hernandez via twitter.
The comic stated that Sonic's home was in Green Hill Zone, the iconic and much-lovedf first level of the original Sonic the Hedgehog game.