In Pokémon FireRed Version, Growlithe can be found on Routes 7 and 8. These routes are located on the east and west sides of Saffron City. Growlithe can also be found in the Pokémon Mansion on Cinnabar Island.
The game locations for Growlithe in FireRed Version are the same as in LeafGreen Version. These versions are also the only handheld games in the third generation of Pokémon games where Growlithe can be found. FireRed and LeafGreen Versions are remakes of the first generation of Pokémon games, including the Red and Blue Versions. Growlithe's locations were the same in Red Version and in the Japanese version of Blue Version, but were unavailable in the U.S. version.