evidence: Measures which show the spatial distribution of deprivation have been used in Northern Ireland since the 1990s, and play a prominent role in terms of informing the targeting of resources to the most deprived areas in Northern Ireland. [...] The current measure updates and replaces the previous deprivation measure, known as the NIMDM 2010. The results are presented at the Super Output Area (SOA) level, the key geography for the NIMDM. Northern Ireland is divided into 890 SOAs. In terms of population, they range in size from 381 to 5,832 people with an average size of around 2,100 people. The number of SOAs in each of the 18 parliamentary constituencies varies, ranging from 41 in Fermanagh and South Tyrone to 58 in Belfast South. [...] Table 1 lists the top 20 most deprived SOAs in Northern Ireland in 2017. East (Strabane), in the constituency of West Tyrone, is the most deprived SOA in Northern Ireland (rank = 1), followed by Water Works 2 (Belfast North) and Crevagh 2 (Foyle). In total, nine of the 20 most deprived SOAs in Northern Ireland are located in Belfast North, six in Foyle, and two in Belfast West.