Hysham
- County:
- Treasure County
- County Seat:
- Yes
- Area (mi²):
- 0.219
- State:
- Montana
Hysham is a town located in Treasure County, Montana. Hysham has a 2026 population of 266. It is also the county seat of Treasure County. Hysham is currently declining at a rate of -3.97% annually and its population has decreased by -2.92% since the most recent census, which recorded a population of 274 in 2020.