Davidsville is a census-designated place 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 the nearby towns of Jerome, Thomas Mills, Tire Hill, Seanor, Hyasota, and part of Holsopple. Davidsville is Area code: 814 Exchange: 479; ZIP Code: 15928.