North Fork is an unincorporated community in Lemhi County, Idaho.Its name is derived from confluence of the south-flowing North Fork of the Salmon River with the north-flowing main Salmon River, which makes a near-right angle turn here to flow westward across the state to Riggins. US 93 serves the community, connecting it with Salmon to the south and Lost Trail Pass to the north.Longtime families in the community include Cummings, Prestwich, Randolph, Hughes, Smith, and Maxwell. The community of North Fork is built around the “North Fork Store” which also houses a post office and small liquor store. There are two hotels and a U.S. Forest Service Station.The community area includes a non-denominational Christian Church .5 miles South East of North Fork and a small private Catholic Chapel some 5 miles North just off U.S. Highway 93 North.