An Age Profile of Ireland


Central Statistics Office (CSO)

Key information

Population classified by: age group by marital status; age group by detailed marital status; area (provinces, counties and cities) by age group; area by detailed marital status; age by marital status; year of birth; age by area; age group by Regional Authority area by marital status; age group by area by town/rural; town by broad age group; town by marital status. Information is supplied in the Small Area Population Statistics (SAPS) classified by Census Enumeration Areas, Dáil Constituencies, Electoral Divisions, Gaeltacht Areas, Garda Regions, Divisions and Districts, Local Electoral Areas, Towns, Urban and Rural areas of each county.

A Methods and Quality Report is available for this statistic.


Census of Population.


The census figures relate to the de facto population, i.e. the figures include visitors present on census night as well as those in residence, while usual residents temporarily absent from the area are excluded from the census count.


Every 5 years

Reference period

Start date



About 12 months after the date of the census


  • Age
    Less than 1 year; 1-4 years; 5-9 years up to 80-84 years in 5 year intervals; 85+ years; 0-14 years; 15+ years. Also 0-4 years up to 80-84 years in 5 year intervals; 85+ years;
  • Age (single years)
    <1 year; 1 to 99 in single years; 100+ years. Also <1 year; 1 to 84 in single years; 85+ years. Also <1 year; 1 to 69 in single years; 70+ years.
  • Age (broad)
    0-14 years; 15-24; 25-44; 45-64; 65 years and over.
  • Marital status (broad)
    Single; Ever-married; Widowed.
  • Marital status (detailed)
    Single; Married; (First marriage; Remarried following widowhood; Remarried following dissolution of previous marriage); Separated/deserted; Divorced; Widowed.
  • Province
    Leinster; Munster; Connacht; Ulster (part).
  • Region (NUTS3)
    Border; Dublin; Mid-East; Midland; Mid-West; South-East; South-West; West.
  • County or City
    The 34 administrative counties.


People and Society - Population

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age ages census deserted divorced map maps marital marriage people population province provinces region remarried rural sap sapmap saps separated single town towns widowed widowhood