Irish Famine Atlas
The Irish famine 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 boundary set. 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. Please scroll to the bottom to choose a county
Additional research has also been undertaken by the National Centre for Geocomputation (NCG) that examines the spatial variations in population change at electoral division (ED) level and the extent to which features of the social and natural landscape can be identified and statistically analysed as determinants of population change. See the NCG website for further details. Click here for access
Irish Famine Data Atlas
In addition to this Population Change Atlas, the NCG also hosts the Irish Famine Data Atlas. This online Atlas of Irish Famine Data provides users with access to population and agriculture 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. See the NCG website for further details.
The boundaries used in this atlas are based on the historic Electoral Division boundaries created in the second half of the 1840s. Here we have created a boundary set of 3,432 EDs (Electoral Divisions) in accordance with those set out in the 1851 census.
Fortunately EDs have remained remarkably stable over much of the island over time, making it possible to use the current day Electoral Divisions Boundary set along with an Ordnance Survey administrative map from 1891 to match the 1851 divisions with their corresponding areas.
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Exceptions to this include EDs around Dublin, Belfast, Galway, Limerick and Galway, which increased significantly in number in the intervening years. Dublin city, for example, consisted of only two divisions in 1851 as opposed to the thirty four divisions that make up the geography of this area today. EDs that crossed county boundaries in 1851 also became problematic during the course of the project.
Northern Ireland Boundaries
The 1891 administrative map was also used to digitize the boundaries of Northern Ireland. Moreover, while Electoral Divisions continued to be used in Northern Ireland after partition there were many boundary, area and name changes, making pre-and post partition comparison problematic. To overcome this difficulty a post partition Boundary set had to be created to accommodate these changes and the mapped post-partition census data interpolated into the original 1851 Boundaries.
Similarly with the introduction of wards in Northern Ireland in 1971 electoral divisions became obsolete. Queens University Belfast have created 1 kilometre grid square data for the six counties and 100 meter grid square grid for urban areas for 1971, 1981, 1991 and the 2001 UK censuses, which they provided to us for the purpose of this project. This data was redistributed into the original 1851 Boundary set, so as to complete the mapping at a consistent set of ED boundaries.
Consequently, some EDs presented in this atlas will have undergone boundary, and in some cases, name changes since 1851 and as a result may not represent the exact geography of today’s Electoral Divisions. However, using a consistent set of boundaries provides us with a better lens on population change over time.
All maps produced in this Irish Famine Population Change Atlas are produced under the National Centre for Geocomputation (NCG) mapping license: Ordnance Survey Ireland Licence Number EN. 0072711 © Ordnance Survey Ireland / Government of Ireland.
For further information on this project please contact Mary Kelly at the NCG. Email Mary.H.Kelly@nuim.ie or Phone 353 1 7086243
Please select a county from the list below and clik VIEW