Stanley is a city in Custer County, Idaho, United States. The population was 100 at the 2000 census. The center of population of Idaho is located in Stanley.
Stanley is located at 44°13′0″N 114°56′16″W / 44.216667°N 114.93778°W / 44.216667; -114.93778 (44.216698, -114.937814), at an elevation of 6,253 feet (1,906 m) above sea level.
According to the United States Census Bureau, the city has a total area of 0.6 square miles (1.6 km²), all of it land. Stanley is surrounded by the Sawtooth National Recreation Area.