Dunn, TexasDunn is an unincorporated community in southern Scurry County, Texas, United States. It is located along State Highway 208 south of Snyder. Dunn previously had a post office.HistoryA historical marker in Dunn reads:ClimateClimate type occurs primarily on the periphery of the true deserts in low-latitude semiarid steppe regions. The Köppen Climate Classification subtype for this climate is BSk.