The DC universe is particularly guilty of this.
- Doomsday Clock: Lampshaded with the revelation that 93% of Earth's superheroes are American. This leads to a conspiracy theory alleging that a significant amount were Super Soldiers created by the U.S. government, leading to a lot of Fantastic Racism against Differently Powered Individuals.
- Green Lantern: Earth has, to date, had six well-known Green Lanterns — which is remarkable in itself, since Green Lanterns represent huge sectors of space, not individual planets — and all of them are from North America (five being males from the United States). Although this is justified at least initially with Hal Jordan and Guy Gardner — Abin Sur had crashed in the US and told the ring to find the closest worthy person. He was in the US, so Hal and Guy were the two closest.
- Superman:
- Kal-El's rocket lands in midwest America, and he chooses to live in the United States.
- Every superpowerful alien either chooses to live in the United States or ends up there by chance. Justified with Supergirl, since her rocket was programmed to lead her to Superman's location (hence, her landing near Metropolis in The Supergirl From Krypton (1959) and Gotham City in The Supergirl from Krypton (2004))
- Superman: Red Son: Averted. Through a mere chance of fate, Kal-El lands not in rural Kansas but on a kolkhoz in Ukraine, and grows up to fight not for "truth, justice and the American Way", but "Stalin, socialism and the international expansion of the Warsaw Pact". While an interesting idea and attempt to explore and avert this trope, it also seems like it was simply an elaborate excuse to make a Stalin/"Man of Steel" pun.
- The Living Legends of Superman, penned by American writer Elliot S! Maggin, is about how Superman will be regarded in the future as History becomes Legend and Legend fades to Myth. In the year 5,902, a man called Riley Benedix likes dressing as heroes of the past: Superman (the defender of Truth, Justice and the American Way of Life), Lincoln, Woodrow Wilson, Eisenhower (three USA presidents who not only have been not forgotten after forty centuries but they are seemingly widely known and appraised)...and a single non-American person who is not even a real historical character.
- Supergirl story arc "The Super-Steed of Steel", authored by American writer Leo Dorfman, has Atlantean villain Vostar to mind-control Comet into starting a destructive rampage that for no particular reason only targets USA famous monuments.
- The Martian Manhunter has also been written as a world traveler with multiple superhero identities in several countries, probably in recognition of this very problem. Almost all of this, of course, takes place off-camera, but that's probably an artifact of Character Focus on the Justice League of America.
- There's also the Justice League International, though it's still headquartered in New York City. The JLI explicitly invokes this trope. Doctor Light (a heroine from Japan, not the one you're thinking of) actually states at one point that it's a political necessity that the Justice League have a more diverse, multicultural membership, as the global community is more likely to be accommodating toward a team of superheroes that does not solely consist of white Americans.
- There are also superhero teams outside the U.S., but they don't normally get their own series. For instance, there's the Great Ten in China. Or Japan's Super Young Team and Big Science Action.
- The Silver Age had "Batmen of many nations", but all of them were inspired by the American Batman. This was reformed as Batman Incorporated in the 2000s, and actively did have numerous international Badass Normal heroes, many of which were bat-themed and often actively inspired by Batman, but most existing before coming into Bruce's fold.
- Green Arrow: There also were Green Arrows of many nations.
- The 2007 Captain Carrot and His Amazing Zoo Crew! miniseries seems to assume that all of Earth-C's superheroes were in the United Species of America (Earth-C's United States of America), and thus subject to the American government's anti-superhero initiative (which included removing the non-Zoo Crew heroes' powers), with the President noting at one point that thanks to the law, there are "no other superheroes on Earth!" Apparently Cornada, Verminy, and Loondon (Earth-C's Canada, Germany, and London respectively, all places mentioned or shown in the original Zoo Crew series) were superhero-less... or that the other heroes simply moving to any of those places (and thus avoiding the law) wasn't an option...
- Brightest Day: Atrocitus uses his magic to divine the locations of the seven emotional entities. Two are captured by someone in Ysmault. The other five are in U.S. territory.
- Gen¹³: The team was primarily based in La Jolla, California, where WildStorm's offices were located. This changed a handful of times as the book went on (for instance, one arc had the group living in Tokyo, and on various occasions they've gone on the run with no set base of operations), but everything goes back to La Jolla sooner or later.
