Census 1926 – A new era for Ireland

The release of the 1926 census is an extraordinarily important moment in our national story. As the first census of the Irish Free State, it provides the earliest comprehensive snapshot of an independent nation emerging from a period of profound upheaval.

Census data is not just important for future planning. It is a permanent record of where and how people lived a century ago. Census 1926 bridges a crucial historical gap. It captures a country still shaped by the legacy of the First World War, the War of Independence and Civil War, as well as by long-standing patterns of emigration and rural life. It shows Ireland at a formative stage, economically, socially and politically.

Unlike the earlier censuses conducted under British administration, Census 1926 was undertaken by institutions of the new State. Even in its structure and language, it reflects evolving national priorities and identity. For historians and members of the public alike, it provides an intimate view of daily life during the early years of self-governance.

While the Central Statistics Office (CSO) is responsible for conducting the census, the National Archives preserves census records under the 100-year rule, which balances individual privacy with the public’s right to reconnect with its past. When Census 1926 is released, it will be made freely available online, joining the 1901 and 1911 records as an invaluable resource for researchers and the global Irish diaspora.

For many families, this will be the first opportunity to see relatives recorded in the early years of the Irish Free State. Beyond genealogy, the records will support research in social history, economics, public health, housing, education and language use.

Most importantly, census records remind us that history is personal. Behind every statistic is a household, a family, a life carefully recorded in handwriting on a form.

In accordance with the 100-year rule, the collection of more than 700,000 individual household returns from the 1926 census will be made freely available and fully searchable on the National Archives website on the night of 18 April 2026.

The census is an important national event as it counts everyone in the country at a particular time. The first known census was undertaken by the Babylonians in 3800 BC, and many will be familiar with the story of Joseph and Mary travelling from Nazareth to Bethlehem to take part in a Roman census ahead of the birth of Jesus.

We have come a long way since then, and the modern Irish census is a major logistical operation carried out by the CSO.  It still serves the same purpose of capturing a moment in time, recording the present in order to plan for the future.

Public service providers use census data for evidence-based decision-making. Knowing who we are and where we live helps us plan effectively for the future.

For example, the number of people aged 65 and over rose by 22% between 2016 and 2022. Statistics like this allow policymakers to prepare for an ageing population and ensure appropriate services are in place.

The census also informs planning for school-age populations, highlighting where more school places may be needed. Local authorities rely heavily on census data when preparing county development plans, while businesses and community organisations use it to guide their decisions. Census data is also used to plan for transport infrastructure needs, while electoral boundaries and the number of TDs in the Dáil are also determined using census results.

The first full census of Ireland was held in 1821, with results published in 1823. The 1841 census introduced significant changes, including the use of Ordnance Survey maps, the appointment of enumerators drawn from the Constabulary, and the introduction of a standard form completed by the head of the household.

Censuses were subsequently taken at ten-year intervals up to 1911. The census forms from 1901 and 1911, are available on the National Archives website and have become invaluable resources for genealogists and historians. There was no census in 1921 due to the War of Independence, making the 1926 census particularly significant.

Since 1951, a census has generally been taken every five years in Ireland due to significant population changes driven by migration. However, there have been exceptions, budgetary concerns in 1976, foot and mouth disease in 2001, and the COVID-19 pandemic in 2021 led to cancellations or postponements.

The next census will take place in April and May 2027, with Census Day on 9 May 2027. For the first time in Ireland, there will be an online option to complete the census. The highly popular Time Capsule section, introduced in Census 2022 as a world first, will return in 2027. This voluntary text box allows people to leave a message for future generations, which remains confidential for 100 years.

Whether through a digital portal in 2027 or a digitised image from 1926, the census remains our most collective act of storytelling.  Just as we will look at the 1926 forms to see the handwriting of our great-grandparents, in 2127, our descendants will read our digital messages. We have a unique opportunity to leave behind our story for future generations whom we will never meet.