Dublin Port Dublin Port Dublin Port () is the seaport of Dublin, Ireland, of both historical and contemporary economic importance. Approximatively two-thirds of Ireland's port traffic travels via the port, which is by far the busiest on the island of Ireland. Recently, the port and its land, mostly at the eastern end of Dublin's Northside, but also with a southern section, were valued at €25 billion – €30 billion. The modern Dublin Port is located either side of the River Liffey, out to its mouth. On the north side of the river, the main part () of the port lies at the
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