List of Dublin postal districts
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Dublin postal districts have been used by Ireland's postal service, known as An Post, to sort mail in Dublin. The system is similar to that used in cities in Europe and North America until they adopted national postal code systems in the 1960s and '70s. These were incorporated into a new national postcode system, known as Eircode, which was fully implemented in 2015. Under the new Eircode system, the Dublin Region incorporates the original routing areas D01 to D24, along with new A## and K## codes for the remainder of the county.
The postal district system was introduced in 1917 by the British government, as a practical way to organise local postal distribution. This followed the example of other cities, notably London, first subdivided into ten districts in 1857, and Liverpool, the first city in Britain or Ireland to have postcodes, from 1864. The letter "D" was assigned to designate Dublin. 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. 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, one of the city's fastest growing suburbs, became Dublin 10, along with Palmerstown and Chapelizod. However, Dublin 10 was subsequently split again, with Palmerstown and Chapelizod forming Dublin 20.
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. An Post ultimately relented, and the district became known as Dublin 6W. However, the eastern half of the old D6 postcode area remained "Dublin 6" rather than "Dublin 6E".
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.:
Under the new Eircode system this address is amended to:
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.
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.
|Dublin's postal districts|
|Northside, covering local government area||Southside, covering local government area|
|Dublin 1 (D1) Dublin||Dublin 2 (D2) Dublin|
|Dublin 3 (D3) Dublin||Dublin 4 (D4) Dublin,|
|Dublin 5 (D5) Dublin||Dublin 6 (D6) Dublin,|
|Dublin 7 (D7) Dublin||Dublin 6W (D6W) Dublin, South Dublin|
|Dublin 8 (D8) Dublin||Dublin 8 (D8) Dublin|
|Dublin 9 (D9) Dublin||Dublin 10 (D10) Dublin|
|Dublin 11 (D11) Dublin, Fingal||Dublin 12 (D12) Dublin|
|Dublin 13 (D13) Dublin, Fingal||Dublin 14 (D14) Dublin, Dún Laoghaire–Rathdown, South Dublin|
|Dublin 15 (D15) Fingal||Dublin 16 (D16) Dún Laoghaire–Rathdown, South Dublin|
|Dublin 17 (D17) Dublin, Fingal||Dublin 18 (D18) Dún Laoghaire–Rathdown|
|Dublin 20 (D20) Dublin, South Dublin|
|Dublin 22 (D22) South Dublin|
|Dublin 24 (D24) South Dublin|
|"County Dublin"; Fingal, South Dublin, Dún Laoghaire–Rathdown, and small pockets of Meath|
An Post has stated that, with just one exception, no street name occurs more than once in any postal district.
- 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. Notable features of this area include the General Post Office, from which distances are measured, the Hugh Lane Gallery and the Dublin Writers Museum.
- Dublin 2 encompasses most of the city centre south of the River Liffey and takes in areas around Merrion Square, Temple Bar, Grafton Street, Dame Street, Leeson Street and Wexford Street. It includes notable important buildings and tourist attractions such as Leinster House, St Stephen's Green, the main National Museum building and The National Gallery of Ireland. The district also houses Government Buildings and is considered to be Government quarter of the state. 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, 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; see separate article at Dublin 4.
- Dublin 7 includes Arbour Hill, Broadstone, Cabra, Grangegorman, Phibsboro, Smithfield, Stoneybatter; a key feature is the Four Courts complex.
- Dublin 8 includes Dolphin's Barn, Inchicore, Islandbridge, Kilmainham, Merchants Quay, Portobello, South Circular Road, the Phoenix Park and the Liberties, and notable buildings include Christchurch Cathedral and St. Patrick's Cathedral. It is unusual in that it is one of only two postal districts to span the Liffey.
- 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 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 15 includes Blanchardstown, Castleknock, Coolmine, Clonsilla, Corduff, Mulhuddart, Tyrrelstown and the Dublin part of Clonee, as well as Ongar.
- Dublin 18 includes Cabinteely, Carrickmines, Foxrock, Kilternan, Sandyford, Ticknock, Ballyedmonduff, Stepaside, and Leopardstown.
- Dublin 20 includes Chapelizod, and Palmerstown. This is one of only two postal districts to span the Liffey.
- Dublin 22 includes Clondalkin, Rowlagh, Quarryvale and Liffey Valley, and Neilstown.
- Dublin 24 includes Firhouse, Jobstown, and Tallaght (see that article for component estates / localities, such as Kilnamanagh).
On 8 October 2013, Minister for Communications, Energy and Natural Resources, Pat Rabbitte announced  a post code system for the entire country which came into effect by Spring 2015 and gives an individual post code to every address in Ireland. 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.
Public awareness of Dublin postal districts allows occasional use in marketing. Dublin n is usually abbreviated to Dn, as in:
Rhodes D7 restaurant
- New postal code system by 2011, Irish Times, 21 September 2009
- It's in the postcode, Irish Independent, 26 September 2009
- Postcode war 'in next year', Irish Independent, 21 September 2008
- Note: Most of the civil parish of Artaine – the townlands of Artaine South, Artaine West and Puckstown – lies within Dublin 9.
- Ryan finalises plans for new postcode system, Sunday Tribune, 3 January 2010
- Coyle, Coloin (10 September 2006). "Upmarket Dublin survives postcode shake-up". The Sunday Times. Ireland News. UK. Retrieved 28 September 2008.
- Michael, Jason (21 September 2009). "New postal code system by 2011". The Irish Times. Retrieved 28 September 2008.
- Rabbitte, Minister Pat (8 October 2013). "RABBITTE GETS GREEN LIGHT FROM CABINET FOR "NEXT GENERATION POSTCODE" SYSTEM BY 2015". Department of Communications, Energy and Natural Resources. Retrieved 21 December 2013.
- Frequently Asked Questions. Eircode