Persistent poverty county (original) (raw)

A persistent poverty county is a classification for counties in the United States that have had a relatively high rate of poverty over a long period. A 2009 U.S. federal law defined a persistent poverty county as one in which "20 percent or more of its population [has lived] in poverty over the past 30 years" according to the Census, which is done every 10 years. The Economic Research Service (ERS) of the U.S. Department of Agriculture categorizes non-metropolitan counties by their dominant economic foundation and by characteristic policy type. Persistent poverty counties are defined as those where 20% or more of the county population in each of the last four decennial Censuses had poverty level household incomes.