This is alist of the counties of Ireland ordered by area.Counties in theRepublic of Ireland are shown in normal type, while those inNorthern Ireland are listed in italic type.
| Rank | County | Area (km2) | Density (/ km2) | Traditionalprovince |
|---|---|---|---|---|
| 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 |
Area (Cork County: 7,467.91 km2 / Cork City: 39.61 km2