The Food Stamp Program (FSP) helps low-income individuals purchase food so that they can obtain a nutritious diet. One important measure of Program performance is the ability to reach its target population, as indicated by the fraction of people eligible for benefits who actually participate. This report is the latest in a series on food stamp participation rates. Estimates are based on the March 2007 Current Population Survey and FSP administrative data for Fiscal Year 2006. The findings represent national participation rates for FY 2006.