Source Information Ireland, Census Fragments, 1821-1851 [database on-line]. Lehi, UT, USA: Operations, Inc., 2021.
Original data: Pre-1901 Census fragments. Dublin, Ireland: Microfilm of original records at the National Archives.

About Ireland, Census Fragments, 1821-1851

Historical Context

This collection includes records of surviving census fragments for Ireland for the years 1821, 1831, 1841 and 1851. In 1922, a fire in the Public Record Office in Ireland was responsible for destroying most of the census taken prior to 1901. Fragments of census from 1821-1851 survived and are available to view and search however, only very specific localities are available for each year.

Census fragments are available for Antrim, 1851; Belfast city (one ward only), 1851; Cavan, 1821 and 1841; Cork, 1841; Dublin city (index to heads of household only), 1851; Fermanagh, 1821, 1841 and 1851; Galway, 1813 (numerical returns for Longford barony) and 1821; King’s County (Offaly), 1821; Londonderry (Derry), 1831 – 34; Meath, 1821; Waterford, 1841.

The 1841 and 1851 censuses also include family members who died since 1831/1841.

This Collection

Details available vary but users may find:

  • Name
  • Residence
  • Gender
  • Birth Place
  • Residence
  • Age
  • Relationship to Head of House
  • Marital Status
  • Approx Birth Year


September 2021: Changes were made to improve the performance of this collection. No new records were added.