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
Oldtown, Dublin Oldtown, Dublin Oldtown () is a population centre and townland in the civil parish of Clonmethan in Fingal, Ireland. The R122 road runs through the village linking Naul to St Margaret's and Dublin Airport. The character of the landscape is "Low-Lying Agricultural", as indicated in the County Development Plan. This area contains mixed pasture and arable farming on low lands, consisting of large fields with few tree belts or large settlements with few panoramic views or prospects. The village itself is situated in a shallow valley drained by a small river known locally as ‘The Daws River’ and is surrounded