The Supplemental Nutrition Assistance Program (SNAP) is a federally funded program administered by states, which provides nutritional support to low-income individuals and households. This report presents data on SNAP receipt during 2018 at the national and state levels based on the 2018 American Community Survey (ACS) 1-year estimates. In addition, this report presents historical comparisons dating back to 2005, when the ACS began collecting these data. The ACS identifies households in which one or more current members received SNAP during the past 12 months. Data are shown at the household level. If any person living at the sample address at the time of the interview received SNAP in the past 12 months, then the household is included in the estimate of SNAP participation.