Idaho State Highway 13 is a state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 located entirely within in Idaho County

Idaho County, Idaho

Idaho County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 16,267. The county seat is Grangeville...

, Idaho

Idaho

Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

. SH 13 is 26.39 miles (42.5 km) and runs from its southern terminus at U.S. Route 95 in Grangeville

Grangeville, Idaho

Grangeville is the largest city in and the county seat of Idaho County, Idaho, United States, in the west central part of the state. It had a population of 3,141 at the 2010 census.- Culture :...

 to its northern terminus at U.S. Route 12 in Kooskia

Kooskia, Idaho

Kooskia is a city in Idaho County, Idaho, United States. The population was 675 at the 2000 census.-Geography:Kooskia is located at ....

. In addition to those cities, SH 13 also serves the city of Stites

Stites, Idaho

Stites is a city in Idaho County, Idaho, United States. The population was 226 at the 2000 census.-Geography:Stites is located at .According to the United States Census Bureau, the city has a total area of , all of it land....

 and the community of Harpster

Harpster, Idaho

Harpster is an unincorporated community in Idaho County, Idaho, United States. Harpster is located along Idaho State Highway 13 northwest of Grangeville and south of Stites....

. SH 13 has one bannered route, Business Loop 13 in Kooskia.

Major intersections