Invincible (Mark Grayson) does not have a clearly named, real‑world home city in the main continuity of the story; his home base is essentially a fictional U.S. city that mixes elements of places like Chicago or an East Coast/“DMV”‑style metro area, depending on whether you’re talking about the comics or the animated show.

In other words, there’s no single official answer like “He lives in Chicago” or “He lives in New York” that’s consistent across versions; the setting is treated more like Metropolis or Gotham: recognizably American, with real cities existing in the same world, but his own primary city is effectively fictional and left somewhat vague.

If you see people online insisting “Invincible lives in Chicago,” they’re usually simplifying or speculating based on visual and story cues, not quoting a firm in‑universe address.

TL;DR: “Where does Invincible live?” → A mostly unnamed, fictional U.S. city (in an alternate Earth with real places like Chicago and New York), rather than a clearly defined real‑world hometown.

Information gathered from public forums or data available on the internet and portrayed here.