Click the link or image to see the interactive map

http://www.usatoday.com/news/graphics/2012/poverty-maps/index2.htm

Each map shows counties where the poverty rate is 20% or higher for kids or the elderly or for both. Use the slider to see how those patterns have shifted from 1980 to 2010.

Sources: Census Bureau data; Kenneth Johnson, University of New Hampshire, analysis by Paul Overberg, USA TODAY

By Jerry Mosemak and Chad Palmer, USA TODAY