List of Dublin postal districts

The green Leeson Street nameplate predates inclusion of postal districts; the newer blue Hatch Street nameplate indicates the district is Dublin 2

The postal district system was introduced in 1917 by the British government, as a practical way to organise local postal distribution.[4] This followed the example of other cities, including London, first subdivided into ten districts in 1857,[5] and Liverpool, the first city in Britain or Ireland to have postcodes, from 1864. The letter "D" was assigned to designate Dublin.[6] The new Irish government retained the postal district system, but district numbers were not used by the public until 1961, when they were added to street signs.[5] Prior to 1961, street signs only displayed the street name in Irish and English.

The number of districts was increased as the city grew, and in the 1970s, large districts were subdivided. Dublin 5 was split, with the coastal part retaining the "5" and the inland part becoming Dublin 17. Dublin 8, Ballyfermot became Dublin 10, along with Palmerstown and Chapelizod. However, Dublin 10 was subsequently split again, with Palmerstown and Chapelizod forming Dublin 20.[7]

In 1985, Dublin 6 was divided, with some areas, such as Templeogue, Kimmage and Terenure becoming part of a new district in order to facilitate processing of mail by a new delivery office for those areas. Residents of some areas objected to the assignation of the next available number, "Dublin 26," for the new postal district, citing property devaluation: the higher numbered districts typically represented less affluent and less central areas.[8] An Post ultimately relented, and the western part of the district became known as Dublin 6W.[5][9]

Street sign in Dublin, displaying name of the street in Irish and English, with postal district number

The postal district appears with one or two digits (or in the case of one district, a digit and a letter) appearing at the end of addresses, e.g.:

Sample Address, Sample Street, Dublin 8

Under the later Eircode postcode system, the postal district number is still retained in Dublin addresses, even though this information is also contained in the "Locator code" portion of the Eircode postcodes, e.g.:

Sample Address, Sample Street, Dublin 8, D08 1X2Y

In most cases, odd numbers are used for addresses on the Northside of the River Liffey, while even numbers are on addresses on the Southside. Exceptions to this are the Phoenix Park (along with a small area between the Park and the River Liffey), and Chapelizod Village which, although on the Northside, are parts of the Dublin 8 and Dublin 20 postal districts respectively.[5]

The numbering system is not used for some areas in County Dublin, such as Dún Laoghaire, Blackrock, Lucan or Swords, though it is used for other county locations, for example Firhouse, Foxrock, Kilshane, Knocklyon and Tallaght.

Publicly distributed leaflet to publicise the Dublin Postal Districts issued by the Irish Department of Posts and Telegraphs – dated April 1976

2007 Postal Districts for Dublin City and Suburbs

The districts, and the main areas and streets they contain, include:

Dublin's postal districts 2019

• Dublin 1 includes most of the north inner city, including Abbey Street, Amiens Street, Capel Street, Dorset Street, Henry Street and Mary Street, Mountjoy Square, Marlborough Street, North Wall, O'Connell Street, Parnell Square, and Talbot Street. This area include the General Post Office, from which distances are measured.
• Dublin 2 encompasses most of the city centre south of the River Liffey and takes in areas around Merrion Square, Trinity College, Temple Bar, Grafton Street, St Stephen's Green, Dame Street, and Leeson Street. Dublin 2 also covers the Grand Canal Dock and the City Quay areas. Dublin 2 is the location of a number of government departments and addresses such as Leinster House, Government Buildings, and the Mansion House. The borders of Dublin 2 are the Liffey in the north, the Grand Canal to the south and east and Aungier, Wexford and Camden Streets to the west.
• Dublin 3 encompasses areas such as Ballybough, North Strand, Clonliffe, Clontarf, Dollymount, East Wall (including East Point), Fairview, most of Killester, and Marino.
• Dublin 4 includes Ballsbridge, Belfield, Donnybrook, Irishtown, Merrion, Pembroke, Ringsend and Sandymount and contains the RDS grounds, Lansdowne Road stadium, and many embassies. "D4" has acquired its own socio-economic identity.[10]
• Dublin 5 includes most of Artane,[11] central Coolock, Harmonstown, Kilbarrack, and Raheny.
• Dublin 6 includes Milltown, Ranelagh, parts of Terenure, Rathmines (including Dartry), and Rathgar.
• Dublin 6W includes Harold's Cross, Templeogue, Kimmage and Terenure.
• Dublin 7 includes Arbour Hill, some parts of Ashtown, Broadstone, Cabra, Grangegorman, Oxmantown, Phibsboro, Smithfield, Stoneybatter.
• Dublin 8 includes Dolphin's Barn, Inchicore, Islandbridge, Kilmainham, Merchants Quay, Portobello, South Circular Road, the Phoenix Park and the Liberties. Notable buildings include Christchurch Cathedral and St. Patrick's Cathedral. It is one of only two postal districts to span the Liffey.[5]
• Dublin 9 includes parts of Ballymun east of Ballymun Road (Shangan and Coultry), Beaumont, Donnycarney, Drumcondra, Elm Mount, Griffith Avenue, parts of Glasnevin (St Mobhi, Botanic Gardens and Met Éireann), Santry, and Whitehall.
• Dublin 10 includes Ballyfermot , includes Sarsfield Road and Cherry Orchard.
• Dublin 11 includes most of Ballymun west of Ballymun Road (Sillogue, Balcurris, Balbutcher, Poppintree, Sandyhill and Wadelai), Dubber Cross, Finglas (including Ballygall and Cappagh), most of Glasnevin (Cremore, Addison, Violet Hill, Finglas Road, Old Finglas Road and Glasnevin Cemetery), Kilshane Cross, The Ward and Coolquay.
• Dublin 12 includes Bluebell, Crumlin, Drimnagh, Greenhills, Perrystown and Walkinstown.
• Dublin 13 Baldoyle, Bayside, Donaghmede, Clongriffin, Sutton, Howth and Ayrfield.
• Dublin 14 includes Churchtown, Clonskeagh, most of Dundrum, Goatstown, lower Rathfarnham and Windy Arbour.
• Dublin 15 includes, Ashtown, Blanchardstown, Castleknock, Coolmine, Clonsilla, Corduff, Mulhuddart, Tyrrelstown and the Dublin part of Clonee, as well as Ongar.
• Dublin 16 includes Ballinteer, Ballyboden, parts of Dundrum, Kilmashogue, Knocklyon, upper Rathfarnham and Rockbrook.
• Dublin 17 includes Balgriffin, most of Coolock, and Belcamp, Darndale and Priorswood.
• Dublin 18 includes Cabinteely, Carrickmines, Foxrock, Kilternan, Sandyford, Shankill, Ticknock, Ballyedmonduff, Stepaside, and Leopardstown.
• Dublin 20 includes Chapelizod, and Palmerstown. This is one of only two postal districts to span the Liffey.[5]
• Dublin 22 includes Clondalkin, Rowlagh, Quarryvale and Liffey Valley, and Neilstown.
• Dublin 24 includes Firhouse, Jobstown, Old Bawn and Tallaght.

Successive Ministers for Communications since 2005 announced plans to introduce a full postcode system across the state.[12][13][14]

On 8 October 2013, Minister for Communications, Energy and Natural Resources, Pat Rabbitte announced a postcode system for the entire country.[15] This came into effect during 2015 and gave an individual post code to every address in Ireland.[2] The pre-existing Dublin district numbers are a component of the full postcode for relevant addresses, forming part of the routing code, the first three characters of the code. For example, a code for an address in Dublin 1 would start with D01, followed by four characters, hence Dublin D01 B2CD.[16]

Public awareness of Dublin postal districts allows occasional use in marketing. Dublin n is usually abbreviated to Dn, with examples including the "D7 Restaurant" or "D4 Hotels".

• 
  D One restaurant
• 
  DTwo nightclub
• 
  D4 Hotels
• 
  Rhodes D7 restaurant

• Republic of Ireland postal addresses
• List of postal codes

• Eircode (official website)
• An Post — The Post Office
• ComReg — Commission for Communications Regulation