NCG Online Atlas Portal

Here we provide users access to two online historic atlases : The Irish Famine Population Data Atlas 1841-2002 and The Atlas of Irish Famine Data 1841 - 1851.

Irish Population Change Atlas.

Screen Shot of the Population Change Atlas

The Irish famine population atlas provides population data for all 32 counties within the Island of Ireland from 1841 to 2002. Data is available at Electoral Division level, at a consistent set of 3432 EDs, which is based on the 1851 Electoral Division boundaries.The data used in this population atlas is from 16 censuses, taken in both the Republic and the North of Ireland between 1841 and 2002.

The above online atlas can also be viewed at:!

Irish Famine Data Atlas.

Screen Shot of the Famine Data Atlas

The Irish famine is a key event in Irish history. This online Atlas of Irish Famine Data provides users with access to population and agricultural data for Ireland for this period. Using data from the Census of Population 1851 and the Agricultural Census of 1841 users can examine aspects of the Irish human and physical landscape at this time in Irish history.

For further information, please contact Mary Kelly, Caroline Treacy or Prof. Stewart Fotheringham on +353 (0)1 7086243.

These Online Atlas projects have been funded by an IRCHSS Senior Research Scholarship awarded to Professor Stewart Fotheringham in 2010 and by the National Centre for Geocomputation, NUI Maynooth.


All maps produced using the NCG Mapping License: Ordnance Survey Ireland License Number EN.0072711 © Ordnance Survey Ireland/Government of Ireland.

We would like to thank Dr. Chris Lloyd, (Queens University Belfast) for providing us with the 1km and 100m grid square data for Northern Ireland for 1971 - 2002 that has been used in this Atlas and the Northern Ireland Statistics and Research Agency (NISRA) for the use of the Northern Ireland Census Data.

If using the data on this atlas please reference: Fotheringham, A.S., Kelly M. and Treacy C. (2011) NCG Online Atlas Portal