Poverty: 2007 and 2008 American Community Surveys
http://www.census.gov/prod/2009pubs/acsbr08-1.pdf
Provides comparisons at the national and state levels for poverty during the 2007 to 2008 time period. Reports that an estimated 13.2% of the U.S. population had income below the poverty threshold in the past 12 months. Also shows the number and percentage of people in poverty by state. From the Census Bureau.
