Fort Peck
- County:
- Valley County
- County Seat:
- No
- Area (mi²):
- 0.893
- State:
- Montana
Fort Peck is a town located in Valley County, Montana. Fort Peck has a 2026 population of 234. Fort Peck is currently declining at a rate of -0.43% annually and its population has decreased by -2.09% since the most recent census, which recorded a population of 239 in 2020.
The median household income in Fort Peck is $90,833 with a poverty rate of 0%. The median age in Fort Peck is 48.8 years: 48.4 years for males, and 50.8 years for females. For every 100 females there are 139.3 males.