This is a list of the counties of Ireland ordered by area. Counties in the Republic of Ireland are shown in normal type, while those in Northern Ireland are listed in italic type.
Rank
County
Area (km2)
Density (/ km2)
Traditional Province
1
Cork
7,508[1]
77.8
Munster
2
Galway
6,151[2]
45.1
Connacht
3
Mayo
5,588[3]
24.7
Connacht
4
Donegal
4,860[4]
34.4
Ulster
5
Kerry
4,807[5]
32.5
Munster
6
Tipperary
4,305[6]
39.0
Munster
7
Clare
3,450[7]
37.1
Munster
8
Tyrone
3,266[8]
57.6
Ulster
9
Antrim
3,086[9]
211.1
Ulster
10
Limerick
2,756[10]
76.0
Munster
11
Roscommon
2,548[11]
27.6
Connacht
12
Down
2,489[9]
222.3
Ulster
13
Wexford
2,367[12]
69.3
Leinster
14
Meath
2,342[13]
94.3
Leinster
15
Londonderry
2,118[9]
119.1
Ulster
16
Kilkenny
2,073[14]
50.2
Leinster
17
Wicklow
2,027[15]
76.9
Leinster
18
Offaly
2,001[16]
41.6
Leinster
19
Cavan
1,932[17]
42.3
Ulster
20
Waterford
1,858[18]
68.6
Munster
21
Westmeath
1,840[19]
52.3
Leinster
22
Sligo
1,838[20]
38.2
Connacht
23
Laois
1,720[21]
53.4
Leinster
24
Kildare
1,695[22]
146.2
Leinster
25
Fermanagh
1,691[23]
37.6
Ulster
26
Leitrim
1,589[24]
22.2
Connacht
27
Armagh
1,327[9]
146.5
Ulster
28
Monaghan
1,295[25]
50.4
Ulster
29
Longford
1,091[26]
42.9
Leinster
30
Dublin
922[27]
1,581.5
Leinster
31
Carlow
897[28]
69.1
Leinster
32
Louth
826[29]
169.1
Leinster
Average
2,633
Total
Ireland
84,421
83.5
^"Report of the Expert Advisory Group on Local Government Arrangements in Cork". gov.ie. Department of Housing, Local Government and Heritage. Retrieved 28 October 2023. Area (Cork County: 7,467.91 km2 / Cork City: 39.61 km2
^"County Profiles – Galway". Western Development Commission. Archived from the original on 2 June 2021. Retrieved 2 June 2021.
^"County Profiles – Mayo". Western Development Commission. Archived from the original on 2 June 2021. Retrieved 2 June 2021.
^"County Profiles – Donegal". Western Development Commission. Archived from the original on 2 June 2021. Retrieved 2 June 2021.
^[1] County Kerry
^[2] County Tipperary
^[3] County Clare
^Northern Ireland General Register Office (1975). "Table 1: Area, Buildings for Habitation and Population, 1971". Census of Population 1971; Summary Tables(PDF). Belfast: HMSO. p. 1. Retrieved 28 August 2019.
^ abcd"Areas, regions, and land divisions". Public Records Office of Northern Ireland. Archived from the original on 24 August 2015.
^[4] County Limerick
^[5] County Roscommon
^[6] County Wexford
^[7] County Meath
^[8] County Kilkenny
^[9] County Wicklow
^[10] County Offaly
^[11] County Cavan
^[12] County Waterford
^[13] County Westmeath
^[14] County Sligo
^[15] County Laois
^[16] County Kildare
^[17] County Fermanagh
^"County Profiles – Leitrim". Western Development Commission. Retrieved 17 April 2024.
^[18] County Monaghan
^[19] County Longford
^[20] County Dublin
^[21] County Carlow
^[22] County Louth
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