Back to Top

 Skip navigation

Trusted for 75 years and counting: CSO 1949-2024

CSO: Trusted for 75 years and Counting

This year the CSO marks 75 years of being trusted to gather, analyse, and publish statistics and insights about Ireland’s society, economy, and environment.

Our methods might have changed over the years, but our commitment to confidentiality, accuracy, quality, transparency, and independence remains the same.

In a crowded data world, the main differences between the CSO and other data providers are our legal standing, our high standards, and stringent regulation. The statistics we publish are also independently compiled and verified and we publish our methodology and sources. Our independence to publish statistical analysis is protected by Irish and European law, as is your data confidentiality.

The statistics we produce are called official statistics and they are independently checked and verified by international bodies and experts. They are the counterbalance to misinformation and hold decision-makers to account. Providing accurate and verifiable facts that are freely available to everyone is a cornerstone of living in an informed society.  

You have counted on us for 75 years and we have counted on you. We are proud to have reached this significant milestone and to be the trusted source for economic and social facts about Ireland.

We continue to work hard to maintain and build on the trust that has been placed in us so we can provide valuable and independently produced data and insights which support evidence-informed decision making for all. 

CSO: Count on us. We count on you.


Some CSO Facts

  1. The first Director of Statistics appointed at the formation of the state in 1922 was John Hooper.
  2. The CSO was established on 01 June 1949 as part of the Department of the Taoiseach.
  3. In June 1949, Roy Geary was appointed as Director of the CSO and Donal McCarthy was recruited as Deputy Director. Junior staff included the future Director Tom Linehan.
  4. In 1949, four statisticians were appointed, which shortly rose to five.
  5. Following the establishment of the CSO, two of the new statisticians were sent to the United States for training in practical statistical work for eight months.
  6. The two statisticians who were sent to the US in 1949 studied government statistics concentrating on National Income Statistics, Household Budget Inquiries, Farm Income Surveys, Estimation of Yields of Farm Crops, and the Design of Sample Surveys.
  7. In 1949 there were 15,118 private cars licensed for the first time. In 2023 this had increased to 117,424.
  8. At 24 years, Tom Linehan is the longest serving Director General of the CSO, from 1967 to 1991.
  9. The number of CSO employees has risen from around 10 in 1949, to 500 in 1982, to more than 1,000 today spread over three locations in Cork and Dublin, as well as teams of interviewers around the country.
  10. On 23 February 1973, £5,802 (the equivalent of about €86,000) was stolen at gunpoint from CSO wages staff (Garda Commissioner Report on Crime 1973).
  11. While the CSO conducts a census of population once every five years, only one has ever been taken in a month other than April. It took place on 12 May 1946.
  12. The Census has been postponed or cancelled on three occasions:
    • In 1976 it was cancelled as an economic measure. A special census took place in 1979 with a reduced number of questions and was followed by a full census in 1981.
    • Census 2001 was postponed for a year due to an outbreak of Foot and Mouth disease.
    • Census 2021 was postponed for a year due to the COVID-19 pandemic.
  13. In February 1994 the CSO was decentralised to Cork. Around 400 permanent posts were transferred to the new office in Cork while 130 posts were retained in Dublin relating to demographic statistics and for economic activities such as National Accounts, Balance of Payments (now International Accounts), and Trade.
  14. On 01 November 1994, the Statistics Act, 1993 came into force. This marked the establishment of the CSO as an independent Office under the aegis of the Taoiseach on a statutory basis.
  15. The CSO issued more than 350 releases and publications in 2009, the year the CSO marked its 60th anniversary. In 2023, there were 447 releases and publications, just over 200 press releases in Irish and English, and more than 100 infographics.

A Brief History of the CSO

1949-1972

01 June 1949: The Central Statistics Office (CSO) was set up in Dublin Castle on a non-statutory basis.

1951: Publication of “The Official Cost of Living Index Number and its Critics” by Director Roy Geary. This 30-page document was written as a response to a great public outcry against this index which was considered “a great fake”. The paper was written to show how the index was constructed, what it meant, and why it could be trusted. It was his view that the independence of the Office and the free publication of its data was “one of the greatest privileges and safeguards of a free democracy”.

1951: The 1951 Census of Population marked the start of taking the Census of Population in Ireland at five-year intervals. It was produced more regularly than other countries due to the scale of migration and social change.

1951-1952: First Household Budget Inquiry carried out. The results provided the raw material for compiling the Cost-of-Living Index number.

1955: First National Farm Survey conducted.

January 1961: Monthly Index of Retail Sales established.

1964: First Sample Survey of Road Freight Transport.

1973, European Economic Community Membership, and Onwards

1973: Ireland joins the EEC which would later become the European Union. Almost all of the CSO’s statistical activities are now mandatory under EU statistical requirements.

1982: CSO staff numbered about 500 people.

1980s: CSO releases and publications could be bought from the Government Publications Sales Office and book shops such as Eason stocked the Statistical Abstract of Ireland, which would later become the Statistical Yearbook of Ireland.

1984: The Government established a Statistical Council under the chairmanship of Professor Denis Conniffe, to review and report on the state of Irish official statistics. He set out what was required of the CSO to improve Irish official statistics. He argued that the CSO: 

  • Required more flexibility and autonomy to engage in multiannual planning which could increase the efficiency and effectiveness in producing statistics.
  • Should recognise the wider range of users of its data, and not simply see its role as being to serve the demands of Eurostat.
  • Required the legal powers necessary to coordinate statistics in Ireland.
  • Needed to modernise its processes and proposed that this could be achieved by widening its skill sets, having secondments across civil service departments, employing new statistical methods, and increasing the use of computers in processing data.

The Statistical Council report was published in 1985 and its analysis fed into the Government White Paper (A New Institutional Structure for the CSO) published in October 1985.

1986: The National Statistics Board was set up.

1993: The Statistics Act, 1993, replaced earlier Acts in full. It included the mandate for data collection as well as access to administrative data, the definition of an Officer of Statistics, and of statistical confidentiality.

11 February 1994: The CSO decentralised to Cork and closed its office in St. Stephen’s Green House, Earlsfort Terrace, Dublin 2.

September 1997: Creation of the first CSO logo.

2000: The CSO’s Swords Office opened.

2018: New CSO logo launched.

2018: New Statement of Strategy called for more use of inline tables, commentary, visualisation tools, and dashboards to turn data and statistics into information and knowledge for all.

2018: The Data Protection Act outlined the requirements for data controllers and data processors to comply with their legal obligations, both under the GDPR and as set out in applicable national legislation.

March 2020: The majority of CSO staff move from office-based work to working from home for the first time due to COVID-19 restrictions.

2020-2022: COVID-19 highlighted the need for more timely information on how the pandemic was affecting our economy, society, and well-being. The CSO responded with a series of new releases and publications, some under the banner of our Frontier Series. We also created Hubs, which provided a one-stop-shop for information on key topics.

May 2022: New Format for releases/publications rolled out with Key Findings and Statistician’s Comment now included with all releases.

June 2024: Launch of the CSO's new Trust and Transparency section on our website.

The History of the CSO in Images


Related Highlights