Since 2014, Metropolitan Council research staff have tracked trends and geographic patterns of poverty in the Twin Cities region — in particular, concentrated poverty, which is known to have a potentially negative affect on residents' economic mobility, health, and overall well-being. Throughout the report, the council refers to "poverty" as those with income below 185 percent of the federal poverty threshold in 2015. In other words, a family of four with income below $44,875, or a single adult with an income below $22,352 in 2015.