Davidsville is a census-designated place (CDP) in Somerset County, Pennsylvania, United States. The population was 1,119 at the 2000 census. It is part of the Johnstown, Pennsylvania Metropolitan Statistical Area. Davidsville is part of the municipality of Conemaugh Township, Somerset County, Pennsylvania, as are nearby towns of Jerome, Pennsylvania, Thomas Mills, Tire Hill, Seanor, Hyasota and part of Holsopple.