Location
Similar to the whereabouts of other fictional DC Universe cities, the actual location of Smallville was, originally, never specifically stated in the comics.
Smallville's location varied widely throughout many stories, many of which placed Smallville close to Metropolis and Midvale, home of Supergirl. All-New Collectors' Edition #C-55 (notable for featuring the wedding of Legion of Super-Heroes members Lightning Lad and Saturn Girl and published in 1978) calls Smallville "a quiet town, nestled in the hills just inland from the eastern seaboard". Most sources since the 1986 John Byrne Superman origin reboot point the location of Smallville to be in Kansas.
Read more about this topic: Smallville (comics)