Troy is a city in Lincoln County, Montana, United States. The population was 938 at the 2010 census, and it is settlement lowest in elevation in Montana. The town is located along U.S. Route 2, near Montana Highway 56, and in the Kootenay River gorge by the Kootenai National Forest.
Originally inhabited by the Kutenai, Salish, and Piegan Blackfeet tribes, the area was settled by miners in the 1880s. Troy was registered as a town in 1892 and grew quickly after the Great Northern Railway built a freight station there, leading to a boom in workers, miners, their families, and associates. The area narrowly missed wildfire damage in 1910 and expanded its services throughout the following years, though its population would drop due to a series of misfortunes in the late 1920s and rebound in the following decades. Troy suffered from the area's contamination from nearby vermiculite mines contaminated with particularly fragile asbestos, leading to the town's inclusion in the United States Environmental Protection Agency's National Priorities List status in 2002 and Public Health Emergency event in 2009. Most risk was reduced by 2015.
Troy is located along U.S. Route 2, between Yaak and Libby, while Montana Highway 56 is located 3 miles southeast and the Troy Airport is 2 miles northwest. The town's economy has historically been supported by mining and logging, while in modern times, mining remains with the addition of education, retail, and tourism.