What is Ireland's population in 2022?

Ireland's population was 5.149 million in Census 2022 — the highest in the history of the state and the largest recorded since the foundation of the Irish Free State. This represents an increase of 362,000 people (7.6%) since the 2016 Census. The growth is driven by natural increase (births minus deaths), net inward migration, and the return of Irish emigrants. Dublin city and county has the largest population at over 1.4 million, while Leitrim remains the least populated county.

Which county in Ireland is growing fastest?

Meath was the fastest-growing county in Ireland between 2016 and 2022, with a population increase of approximately 12.1%. Kildare (+10.1%) and Wicklow (+8.3%) were close behind. These commuter counties are absorbing significant Dublin overspill — as housing costs in Dublin city rise, families and first-time buyers are moving further out along the M1, M7, and DART corridors. Within Dublin itself, Fingal (the north county) recorded the highest intra-Dublin growth, with areas around Swords and Balbriggan among the fastest-growing in the country.

Which parts of Ireland are losing population?

Many rural electoral divisions in Leitrim, Roscommon, Mayo, and Donegal recorded population declines between 2016 and 2022, even as county-level totals showed modest growth driven by their main towns. The pattern is one of rural hollowing — younger people move to cities or emigrate, while older residents remain. Census 2022 median age data makes this visible: the oldest electoral divisions in Ireland are consistently in the rural northwest and west, often exceeding a median age of 50. High median age is a leading indicator of continued decline — fewer young families mean fewer births and ongoing outward migration. IrelandInsights maps median age and population change for all 3,420 electoral divisions.

Ireland Population · Census 2022

Ireland population growth — where is Ireland growing fastest?

Census 2022 recorded Ireland's population at 5.149 million — the highest in the history of the state and the largest ever census count. Growth is not uniform: some areas grew by 20–30% since 2016, while rural areas continue to lose population. Here is what the data shows at electoral division level.

Ireland population — Census 2022 headline figures

Total Population

5.149M

Census 2022

Growth Since 2016

+7.6%

+362,000 people

Median Age

38.8 yrs

National, Census 2022

Housing Units

2.1M

Occupied dwellings

Where is Ireland growing fastest?

Population growth is concentrated in the Dublin commuter belt — Meath, Kildare, and Wicklow — and in the rapidly expanding outer Dublin suburbs of Fingal. These counties absorbed the majority of the 362,000 new residents recorded between 2016 and 2022.

Meath (+12.1%): the fastest-growing county in Ireland. Navan, Dunboyne, Ashbourne, and Ratoath are among the fastest-growing towns. Population driven by Dublin commuters priced out of the capital.
Kildare (+10.1%): Maynooth, Naas, and Celbridge led growth. Strong road and rail connectivity to Dublin makes Kildare the most accessible commuter county.
Fingal (Dublin North County): Swords, Balbriggan, and Blanchardstown saw major growth. Some EDs in north Dublin grew by 30%+ between 2016 and 2022.
Wicklow (+8.3%): Bray, Greystones, and Wicklow town continued to attract Dublin commuters. Strong DART access drives demand in north Wicklow.
Cork (+6.8%): Carrigaline, Ballincollig, and Midleton are Cork's fastest-growing suburbs. Cork county grew faster than Cork city as residents moved outward.

Largest electoral divisions by population

The most populous electoral divisions in Ireland — dominated by outer Dublin suburbs and major urban extensions built in the 2000s.

Electoral Division	Population
1. BLANCHARDSTOWN-BLAKESTOWNFingal	43905
2. LUCAN-ESKERSouth Dublin	33849
3. NAVAN RURALMeath	31940
4. NAAS URBANKildare	26306
5. GLENCULLENDun Laoghaire/Rathdown	23596
6. CARRIGALINE/MONKSTOWN RURAL/DOUGLASCork City	22029

Explore population across Ireland →

Ireland's youngest areas — median age

Areas with the lowest median age — indicating recent family settlement, high birth rates, or student populations. Mostly outer suburbs and university towns.

Electoral Division	Median Age
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Ireland's oldest areas — where is the population ageing?

Areas with the highest median age — typically rural areas experiencing long-term population loss and emigration of young people.

Electoral Division	Median Age
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Fastest-growing counties — explore the data

These counties recorded the highest population growth between Census 2016 and Census 2022. Each has a full data profile at electoral division level.

Meath Kildare Wicklow Dublin Louth Wexford

Explore population data on the map

IrelandInsights maps Census 2022 population figures, household size, and age demographics for every electoral division in Ireland. See which areas are growing, which are ageing, and what demographic profile each area has.

Population map Age demographics Household size Meath growth

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Data: CSO Census 2022 · Population and Age by Electoral Division · cso.ie/census