Data, statistics and survey results
Census of Ireland, 1901/1911
Digital project of the National Archives of Ireland and Library and Archive Canada. The records in the Census of Ireland for 1901 and 1911, may be searched
and forms viewed online. The website includes chapters early 20th century Ireland, with accompanying photographs.
Central Statistics Office Ireland
Coverage: Main coverage is from 2002 on.
Statistics of the Republic Ireland, including the Census.
The Primary Valuation, the first full-scale valuation of property in Ireland, was overseen by Richard Griffith and published between 1847 and 1864. The
website allows family name and place name searching, and shows images of pages of the Valuation, and accompanying maps.
Histpop -- The online historical population reports website.
A collection of British historical population reports, which provides online access to the complete population reports for Britain and Ireland from 1801
UCD Digital Library (formerly: Irish Virtual Research Library and Archive (IVRLA))
UCD (University College Dublin) Digital Library, a platform for exploring cultural heritage, engaging with digital scholarship, and accessing research
data. The IVRLA digital collections have now moved to this platform and can be located in the Collections section.