Wadsworth is a census-designated place (CDP) in Washoe County, Nevada. As of the 2020 census, Wadsworth had a population of 991. It is part of the Reno–Sparks Metropolitan Statistical Area and located entirely within the Pyramid Lake Indian Reservation. The town was named for General James S. Wadsworth, a Civil War general killed during the Battle of the Wilderness in 1864. It was given this name by Leland Stanford of the Central Pacific Railroad as a favor to General Irvin McDowell, whom Wadsworth had served under during the Civil War.