
West Yellowstone
- County:
- Gallatin County
- County Seat:
- No
- Area (mi²):
- 0.908
- State:
- Montana
West Yellowstone is a town located in Gallatin County, Montana. West Yellowstone has a 2025 population of 1,189. West Yellowstone is currently declining at a rate of -1.33% annually and its population has decreased by -6.45% since the most recent census, which recorded a population of 1,271 in 2020.
The average household income in West Yellowstone is $83,143 with a poverty rate of 12.15%. The median age in West Yellowstone is 33.3 years: 33.1 years for males, and 33.4 years for females.