This polygon shapefile represents households with unsatisified basic needs in home materiality according to the 2011 Census of Uruguay. These are critical deficiencies in the materials of the house (roof, walls and floors). A particular home has a critical lack in the materiality of the home if the predominant materials in ceilings or walls are of waste, or predominatly without floor subfloor. An index of unsatisfied basic needs (Necesidadas Basicas Insatisfechas) is used to measure poverty. NBI includes indicators such as access to clean water, quality of housing, crowding, education level and others. The census information was collected by the Instituto Nacional de Estadistica in Uruguay between September 1 and December 31 of 2011. The original questionnaire and other supporting documentation for this census is included with this download. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. East View Cartographic, Inc. and Instituto Nacional de Estadistica, Uruguay.(2018). Unsatisfied Basic Needs, Materiality, Uruguay, 2011. East View Cartographic, Inc.. Available at: http://purl.stanford.edu/hw300rx9071. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.