Fishtail is a small unincorporated community in Stillwater County, Montana, United States. As of the 2020 census, Fishtail had a population of 67. It is located on the West Rosebud River. Its post office was established on February 15, 1901, with Charles Sullivan as its first postmaster. It has a zip code of 59028.
The community of Fishtail was established in 1892. It was platted in 1913.
Fishtail was affected by the 2022 Montana floods when the Stillwater River flooded.
The Stillwater County News is a newspaper serving the area. It is printed weekly and also available online.
The town receives radio and television from the wider Billings area.