This is a list of counties of Ireland

Counties of Ireland

The counties of Ireland are sub-national divisions used for the purposes of geographic demarcation and local government. Closely related to the county is the County corporate which covered towns or cities which were deemed to be important enough to be independent from their counties. A county...

 ordered by population. Counties in the Republic of Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

 are shown in normal type, while those in Northern Ireland

Northern Ireland

Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

 are listed in italic type. See also the list of Irish counties by area.

Data source/age (as-of July 2011):

• Population data for the counties in the Republic of Ireland are based on census 2011, counties in Northern Ireland based on 2004 figures.
• Density: Based on census 2011

Rank	County	Change since previous census	Population	Density (/ km²)	Province
1	Dublin County Dublin County Dublin is a county in Ireland. It is part of the Dublin Region and is also located in the province of Leinster. It is named after the city of Dublin which is the capital of Ireland. County Dublin was one of the first of the parts of Ireland to be shired by King John of England following the...	0	1,270,603	1378.1	Leinster
2	Antrim County Antrim County Antrim is one of six counties that form Northern Ireland, situated in the north-east of the island of Ireland. Adjoined to the north-east shore of Lough Neagh, the county covers an area of 2,844 km², with a population of approximately 616,000...	0	616,384	202.4	Ulster
3	Cork County Cork County Cork is a county in Ireland. It is located in the South-West Region and is also part of the province of Munster. It is named after the city of Cork . Cork County Council is the local authority for the county...	1	518,128	69.0	Munster
4	Down County Down -Cities:*Belfast *Newry -Large towns:*Dundonald*Newtownards*Bangor-Medium towns:...	1	489,588	199.8	Ulster
5	Galway County Galway County Galway is a county in Ireland. It is located in the West Region and is also part of the province of Connacht. It is named after the city of Galway. Galway County Council is the local authority for the county. There are several strongly Irish-speaking areas in the west of the county...	0	250,541	40.7	Connacht
6	Londonderry County Londonderry The place name Derry is an anglicisation of the old Irish Daire meaning oak-grove or oak-wood. As with the city, its name is subject to the Derry/Londonderry name dispute, with the form Derry preferred by nationalists and Londonderry preferred by unionists...	0	211,669	102.1	Ulster
7	Kildare County Kildare County Kildare is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the town of Kildare. Kildare County Council is the local authority for the county...	0	209,955	123.8	Leinster
8	Limerick County Limerick It is thought that humans had established themselves in the Lough Gur area of the county as early as 3000 BC, while megalithic remains found at Duntryleague date back further to 3500 BC...	0	191,306	69.4	Munster
9	Meath County Meath County Meath is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the ancient Kingdom of Mide . Meath County Council is the local authority for the county...	0	184,034	78.5	Leinster
10	Donegal County Donegal County Donegal is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Donegal. Donegal County Council is the local authority for the county...	2	160,927	32.9	Ulster
11	Tipperary County Tipperary County Tipperary is a county of Ireland. It is located in the province of Munster and is named after the town of Tipperary. The area of the county does not have a single local authority; local government is split between two authorities. In North Tipperary, part of the Mid-West Region, local...	0	158,652	36.8	Munster
12	Tyrone County Tyrone Historically Tyrone stretched as far north as Lough Foyle, and comprised part of modern day County Londonderry east of the River Foyle. The majority of County Londonderry was carved out of Tyrone between 1610-1620 when that land went to the Guilds of London to set up profit making schemes based on...	2	158,460	50.2	Ulster
13	Wexford County Wexford County Wexford is a county in Ireland. It is part of the South-East Region and is also located in the province of Leinster. It is named after the town of Wexford. In pre-Norman times it was part of the Kingdom of Uí Cheinnselaig, whose capital was at Ferns. Wexford County Council is the local...	2	145,273	61.2	Leinster
14	Kerry County Kerry Kerry means the "people of Ciar" which was the name of the pre-Gaelic tribe who lived in part of the present county. The legendary founder of the tribe was Ciar, son of Fergus mac Róich. In Old Irish "Ciar" meant black or dark brown, and the word continues in use in modern Irish as an adjective...	1	145,048	30.1	Munster
15	Wicklow County Wicklow County Wicklow is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the town of Wicklow, which derives from the Old Norse name Víkingalág or Wykynlo. Wicklow County Council is the local authority for the county...	1	136,448	67.4	Leinster
16	Mayo County Mayo County Mayo is a county in Ireland. It is located in the West Region and is also part of the province of Connacht. It is named after the village of Mayo, which is now generally known as Mayo Abbey. Mayo County Council is the local authority for the county. The population of the county is 130,552...	1	130,552	23.3	Connacht
17	Armagh County Armagh -History:Ancient Armagh was the territory of the Ulaid before the fourth century AD. It was ruled by the Red Branch, whose capital was Emain Macha near Armagh. The site, and subsequently the city, were named after the goddess Macha...	3	126,803	101.1	Ulster
18	Louth County Louth County Louth is a county of Ireland. It is part of the Border Region and is also located in the province of Leinster. It is named after the town of Louth. Louth County Council is the local authority for the county...	0	122,808	148.7	Leinster
19	Clare County Clare -History:There was a Neolithic civilisation in the Clare area — the name of the peoples is unknown, but the Prehistoric peoples left evidence behind in the form of ancient dolmen; single-chamber megalithic tombs, usually consisting of three or more upright stones...	0	116,885	33.8	Munster
20	Waterford County Waterford *Abbeyside, Affane, Aglish, Annestown, An Rinn, Ardmore*Ballinacourty, Ballinameela, Ballinamult, Ballinroad, Ballybeg, Ballybricken, Ballyduff Lower, Ballyduff Upper, Ballydurn, Ballygunner, Ballylaneen, Ballymacarbry, Ballymacart, Ballynaneashagh, Ballysaggart, Ballytruckle, Bilberry, Bunmahon,...	0	113,707	61.2	Munster
21	Kilkenny County Kilkenny County Kilkenny is a county in Ireland. It is part of the South-East Region and is also located in the province of Leinster. It is named after the city of Kilkenny. The territory of the county was the core part of the ancient Irish Kingdom of Osraige which in turn was the core of the Diocese of...	0	95,360	46.0	Leinster
22	Westmeath County Westmeath -Economy:Westmeath has a strong agricultural economy. Initially, development occurred around the major market centres of Mullingar, Moate, and Kinnegad. Athlone developed due to its military significance, and its strategic location on the main Dublin–Galway route across the River Shannon. Mullingar...	0	85,961	46.7	Leinster
23	Laois County Laois County Laois is a county in Ireland. It is part of the Midlands Region and is also located in the province of Leinster. It was formerly known as Queen's County until the establishment of the Irish Free State in 1922. The county's name was formerly spelt as Laoighis and Leix. Laois County Council...	1	80,458	46.8	Leinster
24	Offaly County Offaly County Offaly is a county in Ireland. It is part of the Midlands Region and is also located in the province of Leinster. It is named after the ancient Kingdom of Uí Failghe and was formerly known as King's County until the establishment of the Irish Free State in 1922. Offaly County Council is...	1	76,806	38.3	Leinster
25	Cavan County Cavan County Cavan is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Cavan. Cavan County Council is the local authority for the county...	0	72,874	37.7	Ulster
26	Sligo	0	65,270	35.5	Connacht
27	Roscommon County Roscommon County Roscommon is a county in Ireland. It is located in the West Region and is also part of the province of Connacht. It is named after the town of Roscommon. Roscommon County Council is the local authority for the county...	0	63,898	25.0	Connacht
28	Monaghan County Monaghan County Monaghan is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Monaghan. Monaghan County Council is the local authority for the county...	1	60,495	46.7	Ulster
29	Fermanagh County Fermanagh Fermanagh District Council is the only one of the 26 district councils in Northern Ireland that contains all of the county it is named after. The district council also contains a small section of County Tyrone in the Dromore and Kilskeery road areas....	1	57,527	34.0	Ulster
30	Carlow County Carlow County Carlow is a county in Ireland. It is part of the South-East Region and is also located in the province of Leinster. It is named after the town of Carlow, which lies on the River Barrow. Carlow County Council is the local authority for the county...	0	54,532	60.8	Leinster
31	Longford County Longford County Longford is a county in Ireland. It is part of the Midlands Region and is also located in the province of Leinster. It is named after the town of Longford.Longford County Council is the local authority for the county...	0	38,970	35.7	Leinster
32	Leitrim County Leitrim County Leitrim is a county in Ireland. It is located in the West Region and is also part of the province of Connacht. It is named after the village of Leitrim. Leitrim County Council is the local authority for the county...	0	31,778	19.9	Connacht
	Average		195,053
Total	Ireland Ireland Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...		6,241,700	73.9

Taken from latest Census Data for Northern Ireland and the Republic of Ireland.

For a more detailed analysis of current and historical Irish populations in the Republic of Ireland, see Irish Population Analysis

Irish Population Analysis

The population of Ireland in 2008 was approximately 6.1 million comprising 4.35 million in the Republic of Ireland with another 1.75 million in Northern Ireland. Although this is a significant growth over recent years, it is lower than historical figures....

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