List of Irish Counties By Population

This is a list of counties of Ireland ordered by population. Counties in the Republic of Ireland are shown in normal type, while those in Northern Ireland are listed in italic type. See also the list of Irish counties by area. The counties of Northern Ireland no longer have a function in demarcating areas of local government. For a more detailed analysis of current and historical Irish populations in the Republic of Ireland, see Irish Population Analysis.

Data source/age (as-of November 2012):

  • Taken from latest Census Data for Northern Ireland and the Republic of Ireland.
  • 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 Population Density (/ km²) Province Change since
previous census
1 Dublin 1,273,069 1380.8 Leinster 7.02%
2 Antrim 616,384 202.4 Ulster
3 Cork 519,032 69.0 Munster 7.84%
4 Down 489,588 199.8 Ulster
- Fingal 273,991 600.6 Leinster 14.17%
- South Dublin 265,205 1,190.6 Leinster 7.40%
5 Galway 250,541 40.7 Connacht 8.15%
6 Londonderry 211,669 102.1 Ulster
7 Kildare 210,312 123.8 Leinster 12.87%
- Dún Laoghaire-Rathdown 206,261 1,620.1 Leinster 6.30%
8 Limerick 191,809 69.4 Munster 4.21%
9 Meath 184,135 78.5 Leinster 13.08%
10 Donegal 161,137 32.9 Ulster 9.42%
11 Tipperary 158,754 36.8 Munster 6.37%
12 Tyrone 158,460 50.2 Ulster
13 Kerry 145,502 30.1 Munster 4.05%
14 Wexford 145,320 61.2 Leinster 10.30%
15 Wicklow 136,640 67.4 Leinster 8.28%
16 Mayo 130,638 23.3 Connacht 5.49%
17 Armagh 126,803 101.1 Ulster
18 Louth 122,897 148.7 Leinster 10.45%
19 Clare 117,196 33.8 Munster 5.63%
20 Waterford 113,795 61.2 Munster 5.40%
21 Kilkenny 95,419 46.0 Leinster 8.98%
- South Tipperary 88,432 39.2 Munster 6.26%
22 Westmeath 86,164 46.7 Leinster 8.59%
23 Laois 80,559 46.8 Leinster 20.13%
24 Offaly 76,687 38.3 Leinster 8.21%
25 Cavan 73,183 37.7 Ulster 14.34%
- North Tipperary 70,322 34.4 Munster 6.61%
26 Sligo 65,393 35.5 Connacht 7.39%
27 Roscommon 64,065 25.0 Connacht 9.01%
28 Monaghan 60,483 46.7 Ulster 8.01%
29 Fermanagh 57,527 34.0 Ulster
30 Carlow 54,612 60.8 Leinster 8.47%
31 Longford 39,000 35.7 Leinster 13.40%
32 Leitrim 31,796 19.9 Connacht 9.84%
Average 199,974
Total Ireland 6,399,152 75.8

^ a: indicates that this county is a non-traditional administrative county

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