This report is a census of women, infants, and children who were participating in the WIC program in April, 2012. The report includes information on participant income and nutrition risk characteristics, and estimates breastfeeding initiation rates for WIC infants.

This study is part of a larger FNS effort to ensure WIC program integrity and to comply with the Improper Payments Information Act of 2002 which requires FNS to estimate improper payments in its programs.

This report estimates the average monthly food costs for each of 5 WIC participant subgroups and estimates total dollars spent on 17 major categories of WIC-eligible foods in FY 2010. The participant and food level costs in this report are USDA’s first estimates since implementation of the 2009 WIC food package changes.

This report offers updated estimates of the population that met these criteria and was eligible for WIC benefits in 2010. This report includes (1) estimates of the number of eligibles (including children by single year of age) and coverage rates; (2) updated estimates in U.S. territories; and (3) confidence intervals.

The WIC and Head Start programs share common goals. Both programs strive to promote positive health and nutrition status for young families. Both programs provide young children and families with nutritious foods, health and nutrition education, and assistance in accessing on-going preventive health care. In many communities, WIC and Head Start serve the same families. By working together, programs have an opportunity to coordinate these services and maximize use of scarce resources (e.g., funding, staff, space). Working together can mean minimizing duplicative efforts on the part of families and staff; more opportunities for WIC and Head Start to benefit from each program’s strengths, expertise and best practices; and ultimately, more ways to make a positive impact on good health and nutrition for children and families.

This report reviews recent approaches to estimating the numbers of persons eligible for and participating in WIC. It also describes issues concerning these estimates that may be worthy of review and synthesizes research on these issues.