This report is the latest in a series of publications presenting estimates of the percentage of eligible persons, by state, who participate in the Food Stamp Program. The participation rate – a ratio of the number of participants to the number of people eligible for benefits – is an important measure of program performance. This issue presents food stamp participation rates for states in an average month in fiscal year 2003 and for the previous fiscal year. Nationally, the participation rate among eligible persons increased from 54 percent in fiscal year 2002 to 56 percent in fiscal year 2003.