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
Ballyroan, Dublin Ballyroan, Dublin Ballyroan () is a suburb in Rathfarnham, County Dublin in Ireland. It lies at the foot of the Dublin mountains, alongside Ballyboden, Butterfield, Knocklyon, Old Orchard, and Scholarstown. The townland of Ballyroan crosses civil parish and barony boundaries with roughly 114 acres of the historical townland in the civil parish of Tallaght in the barony of Uppercross, and nearly 10 acres in the civil parish of Rathfarnham in the barony of Rathdown. The modern suburb of Ballyroan has extended somewhat beyond the traditional townland boundaries. The centre of Ballyroan contains the Rosemount shopping centre, the parish church which