Not an administrative area, the Northside is variously defined. It generally includes those parts of Dublin city that lie north of the River Liffey. County Dublin settlements, north of the M50motorway, such as Swords and Malahide,

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James Joyce set several of the Dubliners stories on the Northside, reflecting his childhood sojourns in Drumcondra and Fairview. Among the more recent best-selling writers to have written extensively about the Northside are Dermot Bolger and Booker Prize

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The Northside includes Dublin city centre north of the Liffey, of whose many streets some are noted below, and districts such as Smithfieldand Summerhill. Some older districts, such as

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Well known places and sights on the Northside include:
• Abbey Street
• Abbey Theatre, the Irish National Theatre

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• Dublin Postal Districts
• Southside, Dublin
• List of Eircode routing areas in Ireland

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Traditionally, Dublin postal districts on the Northside begin with odd numbers, while those on the Southside begin with even numbers. O'Connell Street, for example, is in the city's D01 district—simply called "Dublin 1" in everyday speech—whereas the outer suburb of

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