Opheim
- County:
- Valley County
- County Seat:
- No
- Area (mi²):
- 0.209
- State:
- Montana
Opheim is a town located in Valley County, Montana. Opheim has a 2026 population of 73. Opheim is currently declining at a rate of -1.35% annually and its population has decreased by -2.67% since the most recent census, which recorded a population of 75 in 2020.