Hinsdale is an unincorporated community and census-designated place in Valley County, Montana, United States. As of the 2020 census, Hinsdale had a population of 193. The community is located on the Milk River and U.S. Route 2, with Montana Highway 537 headed north out of town and South Bench Road crossing the railroad tracks and running south of town. Hinsdale has a post office with ZIP code 59241.