Concentrated poverty refers to a spatial density of socio-economic deprivation. In the US, it is commonly used in fields of policy and scholarship in reference to areas of "extreme" or "high-poverty" defined by the US census as areas with "40 percent of the tract population living below the federal poverty threshold." A large body of literature argues that these areas of concentrated poverty place additional burdens on poor families that live within them, beyond what the families' own individual circumstances would dictate. The research also indicates that areas of concentrated poverty can have wider effects on surrounding neighborhoods that are not classified as "high-poverty," thus limiting overall economic potential and social cohesion.
The Invention of the Measure
There have long been areas of concentrated poverty, and the distinct social problems of concentrated poverty, which exacerbate individual impoverishment have been the grounds of reform movements and studies since the mid-19th Century. However, the measure of concentrated poverty and the coalescence around an analytical conception of concentrated poverty occurred only in the 1970s. This more recent focus on concentrated poverty grew largely out of concern about the nation’s inner cities in the wake of ongoing deindustrialization, civil unrest in the late 1960s, and the rapid suburbanization and out-migration that followed. In most cases, these poor inner city locations were populated predominantly by minorities, and many featured large public housing developments.