Sylvanite, Montana

Sylvanite is a census-designated place (CDP) in Lincoln County, Montana, United States. The population was 103 at the 2010 census.

The community is in Kootenai National Forest in northwestern Lincoln County, in the valley of the Yaak River, a south-flowing tributary of the Kootenai River. Yaak River Road (National Forest Road 92) runs through the valley, leading south 11 mi to U.S. Route 2 in the Kootenai valley and northeast (upriver) 17 mi to Yaak.

According to the U.S. Census Bureau, the Sylvanite CDP has an area of 14.8 sqkm, all land.