Census of Ireland 1901/1911 and Census fragments and substitutes,
The household returns and ancillary records for the censuses of Ireland of 1901 and 1911, which are in the custody of the National Archives of Ireland, represent an extremely valuable part of the Irish national heritage. Read more about their digitisation.
All thirty-two counties for 1901 and 1911, searchable by all information categories, are now available on this site. Corrections and improvements will be ongoing, and we are very grateful to all users who have submitted corrections to us. A small amount of material is missing from the site, and will be placed online as soon as possible.
Surviving census fragments and substitutes for 1821-51 are a valuable, if limited, resource for the pre-Famine period. Read more about these records
See User Corrections for information about data updates to the site.
Other Places to Look
What was early 20th century Ireland like?
See our illustrated account of the country, including material for Cork, Galway and Waterford:
Further contextual and illustrative material will appear on the site over the coming months, subject to budgetary constraints.