Percent of the total population living below the federal poverty level.
U.S. Census Bureau, Small Area Income and Poverty Estimates Program, Model-based small area income and poverty estimates for school districts, counties, and states, various years.
Small Area Income and Poverty Estimates (SAIPE) combine data from administrative records, postcensal population estimates, and the decennial census with direct estimates from the American Community Survey to provide consistent and reliable single-year estimates. Due to the switch from the Current Population Survey Annual Social and Economic Supplement to American Community Survey data in SAIPE modeling between 2004 and 2005, comparisons across these particular time periods are not advised (for SAIPE methodology, see: http://www.census.gov/did/www/saipe/methods/index.html). Poverty estimates from SAIPE should not be compared with other poverty indicators based on data from the American Community Survey 5-year estimates.