These are lists of the lowest-income counties in the United States, based on measures of per capita personal income and median household income. This article lists counties by per capita personal income (PCPI), a more comprehensive measurement of an individual's income that per capita income (PCI). 50 counties/parishes with lowest per capita personal income Two common measurements of the average annual income of individuals in the United States are: per capita income (PCI) and per capital personal income (PCPI). Per capita personal income is the more comprehensive of the two measures, and thus PCPI for an individual, county, or state will be higher than PCI. The following table is a listing of counties by PCPI. 50 counties/parishes with lowest median household income See also List of lowest-income places in the United States List of highest-income counties in the United States List of United States counties by per capita income Persistent poverty county References External links Bureau of Economic Analysis US Census, Small Area Income and Poverty Estimates, State and County Estimates for 2021 Income in the United States Income, lowest Poverty in the United States Counties Lowest Income