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
River Dee (Ireland) Annagassan. The Dee in turn has three main tributaries: the Killary River which joins south of Drumconrath, Co. Meath, the Gara River which joins west of Ardee, Co. Louth, and the White River which joins north of Dunleer, Co Louth. There is one lake on the Dee called Whitewood Lake which is near Nobber, Co. Meath. The River Dee is a brown trout fishery. River Dee (Ireland) ف The River Dee () is a river in eastern Ireland, flowing from Co. Cavan to join the Glyde in Co. Louth. In the "Táin Bó Cúailnge", Cúchulainn fights Lethan at Ath Carpat