Montana State Hospital is located in Warm Springs, Montana, just off of I-90 near Anaconda, Montana. The hospital is the only publicly operated psychiatric hospital in the state. It was founded by the territorial government in 1877. The hospital was once Montana's largest unincorporated community. Its peak census was in 1954 when the facility housed 1,964 patients. Today the census averages under 200 patients, primarily placed by civil court commitment action.