Fowlerton is a town in Fairmount Township, Grant County, Indiana, United States. The population was 261 at the 2010 census. Fowlerton was called Leach when it was founded. The Leach post office was established in 1895, and was renamed Fowlerton in 1902. Fowlerton was a booming town with multiple stores, bars, and this small town even had its own …Fowlerton is a town in Fairmount Township, Grant County, Indiana, United States. The population was 261 at the 2010 census. Fowlerton was called Leach when it was founded. The Leach post office was established in 1895, and was renamed Fowlerton in 1902. Fowlerton was a booming town with multiple stores, bars, and this small town even had its own locomotive station; at least up until the Great Flood of 1913, which wiped out the entire town and left buildings, homes, and debris deep under water.