Riggins is a city in Idaho County, Idaho, United States. It is nestled deep in a canyon at the confluence of the Salmon River and the Little Salmon River in west central Idaho, approximately 150 highway miles (241 km) north of Boise, and 120 highway miles (193 km) south-southeast of Lewiston. The elevation of Riggins is 1,821 feet (555 m) above sea level, and the population was 419 at the 2010 census. US-95, the only highway for the state connecting the Panhandle to the south, runs through Riggins as Main Street. Along this route, Riggins is the northwesternmost town in the Mountain time zone. The Pacific time zone begins just north of Riggins, upon crossing the Salmon River.Riggins is midway in the 300-mile (480 km) drive from Boise to Moscow, home of the University of Idaho, making it a popular refueling stop for students from the Treasure Valley.