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 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.
David Stutzman laid out Davidsville in 1831, with Thomas Gaghegan serving as surveyor. Joseph Schell & Peter Levy built the first house in 1831, Tobias Mishler & Samuel Livingstone built a blacksmith shop in 1832, and a schoolhouse was built around 1835. A Lutheran church was built in 1852.
Davidsville is located at 40°13′36″N 78°56′12″W. According to the United States Census Bureau, the CDP has a total area of 2.3 square miles (6.0 km2), all of it land.
At the 2000 census there were 1,119 people, 441 households, and 355 families living in the CDP. The population density was 489.5 people per square mile (188.7/km²).