This article summarises research undertaken by the authors to develop a prototype comparative cross-border deprivation measure using census data available from the respective censuses of Ireland and Northern Ireland. This new All-Island Deprivation Index, when fully tested, will allow policy-makers, practitioners and academics to better understand the spatial distribution of deprivation from a comparative perspective and provide information for cross-border communities. Based on the methodology developed in this article, it will be possible to generate a new comparative deprivation measure as soon as data from the 2011 Census for both jurisdictions becomes available. The potential linking of this index to the development of EU programmes, i...