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
Christianity in Ireland Dublin: within the walls of the old city is Christ Church Cathedral, the seat of the Archbishop of Dublin, and just outside the old walls is St. Patrick's Cathedral, which the church designated as a National Cathedral for Ireland in 1870. Cathedrals also exist in the other dioceses. The church operates a library and seminary, the Church of Ireland Theological College, in Rathgar, in the south inner suburbs of Dublin. The church's central offices are in Rathmines, adjacent to the Church of Ireland College of Education. The Church in 1999 voted to prohibit the flying of flags other than the