This report – the latest in an annual series – presents estimates of the percentage of eligible persons, by state, who participated in SNAP during an average month in FY 2010 and in the 2 previous fiscal years. This report also presents estimates of state participation rates for eligible “working poor” individuals (persons in households with earnings) over the same period. Although SNAP provides an important support for working families, the working poor has participated at rates that are substantially below those for all eligible persons.