This is a list of counties of Ireland ordered by population. Non-traditional administrative counties are indicated by a cream-coloured background.
For a more detailed analysis of current and historical Irish populations in the Republic of Ireland, see Irish population analysis. The population of the six counties of Northern Ireland as of 2021 is 1,903,100, which would mean a total population on the island of Ireland as of 2022 of approximately 7,052,314.
Data source (as of June 2023): Taken from latest census data for the Republic of Ireland and Northern Ireland. Population data for counties in the Republic of Ireland is based on data from the 2022 census. Population data for counties in Northern Ireland is based on the 2021 census. The previous census for the Republic of Ireland was taken in 2016, the previous census for Northern Ireland was taken in 2011. Density updated as of 2021 for Northern Ireland and 2022 for the Republic of Ireland.
+ Counties of Ireland by population Rank County Population Density Traditional province Jurisdiction Change since previous census (%) Change per year (%) (/km2) (/mi2) 1 Dublin 1,458,154 Leinster Republic of Ireland 7.7% 1.28% 2 Antrim 651,321 Ulster Northern Ireland 5.1% 0.51% – Dublin City 592,713 Leinster Republic of Ireland 6.9% 1.15% 3 Cork 584,156 Munster Republic of Ireland 7.1% 1.18% 4 Down 553,261 Ulster Northern Ireland 3.9% 0.39% – Fingal 330,506 Leinster Republic of Ireland 11.2% 1.86% – South Dublin 301,075 Leinster Republic of Ireland 7.5% 1.25% 5 Galway 277,737 Connacht Republic of Ireland 7.1% 1.18% 6 Londonderry 252,231 Ulster Northern Ireland 2.0% 0.20% 7 Kildare 247,774 Leinster Republic of Ireland 11.0% 1.83% – Dún Laoghaire–Rathdown 233,860 Leinster Republic of Ireland 7.1% 1.18% 8 Meath 220,826 Leinster Republic of Ireland 12.9% 2.15% 9 Limerick 209,536 Munster Republic of Ireland 5.4% 0.9% 10 Armagh 194,394 Ulster Northern Ireland 10.1% 1.01% 11 Tyrone 188,383 Ulster Northern Ireland 5.5% 0.55% 12 Tipperary 167,895 Munster Republic of Ireland 5.1% 0.85% 13 Donegal 167,084 Ulster Republic of Ireland 4.5% 0.75% 14 Wexford 163,919 Leinster Republic of Ireland 9.2% 1.53% 15 Kerry 156,458 Munster Republic of Ireland 5.1% 0.85% 16 Wicklow 155,851 Leinster Republic of Ireland 9.2% 1.53% 17 Louth 139,703 Leinster Republic of Ireland 7.9% 1.31% 18 Mayo 137,970 Connacht Republic of Ireland 5.2% 0.87% 19 Clare 127,938 Munster Republic of Ireland 7.2% 1.2% 20 Waterford 127,363 Munster Republic of Ireland 9.4% 1.57% 21 Kilkenny 104,160 Leinster Republic of Ireland 4.5% 0.75% 22 Westmeath 96,221 Leinster Republic of Ireland 8.0% 1.33% 23 Laois 91,877 Leinster Republic of Ireland 8.2% 1.37% 24 Offaly 83,150 Leinster Republic of Ireland 6.0% 1.0% 25 Cavan 81,704 Ulster Republic of Ireland 6.6% 1.1% 26 Roscommon 70,259 Connacht Republic of Ireland 8.4% 1.4% 27 Sligo 70,198 Connacht Republic of Ireland 6.5% 1.08% 28 Monaghan 65,288 Ulster Republic of Ireland 5.6% 0.93% 29 Fermanagh 63,585 Ulster Northern Ireland 3.8% 0.38% 30 Carlow 61,968 Leinster Republic of Ireland 8.8% 1.47% 31 Longford 46,751 Leinster Republic of Ireland 14.1% 2.35% 32 Leitrim 35,199 Connacht Republic of Ireland 9.5% 1.58% Total Island of Ireland 7,052,314 83.5
See also Demographics of the Republic of Ireland Historical population of Ireland List of Irish counties by area List of Irish counties by highest point List of Irish counties by coastline
Notes The populations of Dublin, Cork, Galway, Limerick and Waterford cities are included with the respective traditional counties. For a list of these cities and their suburbs by population see, List of urban areas in the Republic of Ireland. For more information on city status, see City status in Ireland.
References