Population and Migration Estimates


Central Statistics Office (CSO)

Key information

Population classified by components of annual population change; estimated population by sex, age group and regional authority area; estimated migration by sex, country of destination/origin and age group; estimated immigration by sex and nationality.


The CSO Census of Population and Quarterly National Household Survey (QNHS). Other sources include the Register of Electors, the Child Benefit Scheme, the number of visas granted, the number of work permits issued/renewed, the number of asylum applications, the number of PPS numbers allocated.


The overall level of the population estimates cover persons resident both in private households and in institutions, but the breakdowns provided are based solely on the QNHS which covers private households only. From 2007 onwards the population estimates are based on usual residence instead of de facto population.



Reference period

Mid-April (population estimates), twelve months to mid-April (migration estimates)

Start date

1950 (population estimates), 1987 (migration estimates)


5 months after the end of the reference period


  • Population change components
    Births; Deaths; Natural increase; Immigrants; Emigrants; Net migration.
  • Age (migration estimates)
    0-14 years; 15-24; 25-44; 45-64; 65+ years.
  • Age (population estimates)
    0-4 years; 5-9; 10-14; 15-19; 20-24; 25-29; 30-34; 35-39; 40-44; 45-49; 50-54; 55-59; 60-64; 65-69; 70-74; 75-79; 80-84; 85+ years.
  • Nationality
    Irish; UK; Rest of EU 15; EU 12; USA; Rest of world.
  • Country of destination or origin
    UK; Rest of EU 15; EU 12; USA; Rest of world.
  • Region (NUTS3)
    Border; Dublin; Mid-East; Midland; Mid-West; South-East; South-West; West.


People and Society - Population

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asylum births deaths emigrants emigration flows immigrant immigrants immigration increase migrants migration natural population qnhs