Riggins is a city in the western United States in Idaho County, Idaho. Nestled deep in a canyon at the confluence of the Salmon and Little Salmon rivers in west central Idaho, it is approximately 150 highway miles (240 km) north of Boise, and 120 highway miles (190 km) south-southeast of Lewiston. The elevation is 1,821 feet (555 m) above sea level, and its population was 419 at the 2010 census.

Idaho County is a county in the U.S. state of Idaho, and the largest by area in the state. As of the 2020 census, the population was 16,541. The county seat is Grangeville. Previous county seats of the area were Florence (1864–68), Washington (1868–75), and Mount Idaho (1875–1902).