South Dublin South Dublin South Dublin () is a county in Ireland, within the province of Leinster, and the Dublin Region, a successor to County Dublin, from which its name derives. South Dublin County Council is the local authority for the county. The county contains both dense suburbs of Dublin and stretches of unpopulated mountain. In 2011 it had a population of 278,749, making it the third most populous county in the state. South Dublin has an area of 222.74 square kilometres. It is bounded by Dublin City (15 km to the north east), the River Liffey (separating it from Fingal to
County Dublin County Dublin County Dublin ( or "Contae Átha Cliath") is one of the thirty-two traditional counties of Ireland. It is no longer used as an administrative division for local government but retains a strong identity in popular culture. It is conterminous with the Dublin Region and is in the province of Leinster. It is named after the city of Dublin, which is the regional capital and the capital city of Ireland. County Dublin was one of the first parts of Ireland to be shired by John, King of England following the Norman invasion of Ireland. Prior to 1994 County Dublin