Capitol City is located in the American midwest and is the original base of operations for Alan Scott - the Golden Age Green Lantern. Alan functioned out of Capitol City for only a short period of time before establishing his permanent base of operations in Gotham City.
Two other towns called "Capitol City" have appeared, unrelated to the home of Alan Scott.
- The first appeared in Superman's Pal, Jimmy Olsen #102 (1967), and was a large city of 4 million inhabitants, apparently on the Eastern Seaboard.
- The second appeared in the Superboy TV series, located in the state of Florida. This version was the second home of Superboy, and first appeared in the episode The Bride of Bizarro, Part I (1989).
- This version of Capitol City, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.