The USDA manages the Supplemental Nutrition Assistance Program (SNAP), which is the official name of the food stamp program. Public assistance offices within each state handle the actual running of the SNAP program locally.
Benefit eligibility is based on household income, and a USDA estimate of how much it costs to buy and prepare low-cost healthy meals.
The USDA defines a household as "people who live together and eat meals together".
The latest available data from the USDA shows that 18,093,759 households across the United States were receiving SNAP benefits in May 2019.