Stanley
- County:
- Custer County
- County Seat:
- No
- Area (mi²):
- 0.543
- State:
- Idaho
Stanley is a city located in Custer County, Idaho. Stanley has a 2025 population of 120. Stanley is currently growing at a rate of 0.84% annually and its population has increased by 2.56% since the most recent census, which recorded a population of 117 in 2020.
The median age in Stanley is 73.1 years: 0 years for males, and 67.2 years for females.