Data & Reports
Historically, WIC has benefited greatly from evaluations of the program and high-quality quantitative and qualitative research focused on the program’s impact. It is crucial that such reviews and research continue to update, reinforce, and expand the rigorous documentation of WIC’s positive effects on the women, infants, and young children served by the program. To date, WIC studies have been wide-ranging in theme and scale and have covered issues from the impact WIC has on obesity and cognitive development to how the WIC food package meets the cultural needs of WIC populations across the country.
Below is a selection of key resources that demonstrate the impact of the WIC program.
Annual State Level Data FY2009 – FY2017: Total Participation
Monthly Data: State Level Participation by Category and Program Cost
Understanding the Factors Influencing Low-Income Caregivers’ Perceived Value of a Federal Nutrition Programme, the Special Supplemental Nutrition Program for Women, Infants and Children (WIC)
National Survey of WIC Participants III
Changing WIC changes what children eat
WIC Infant and Toddler Feeding Practices Study 2: Infant Year Report
National Food and Nutrition Questionnaire (NATFAN) Summary - New Hampshire Results
Breastfeeding Social Marketing: Lessons Learned from USDA's “Loving Support” Campaign
A Comparison Between Improvers and Non-Improvers Among Children with Anemia Enrolled in the WIC Program
Local Disparities in Breastfeeding Initiation and Duration: A Cross-Sectional Population-Based Survey in Ten Chicago Community Areas
WIC Works: Policy Changes Raise Breastfeeding Rates
Breastfeeding Is Associated With Higher Retention in WIC After Age 1
Lactation Advice through Texting Can Help: An Analysis of Intensity of Engagement via Two-Way Text Messaging
Severe Housing-Cost Burden and Obesity Among Preschool-Aged Low-Income Children in Los Angeles County
A Focus Group Study Observing Maternal Intention to Use a WIC Education App
The Economic Impacts of Breastfeeding: A Focus on USDA’s Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)
WIC Participant and Program Characteristics 2016
To search for more specific research and data resources, search the Research & Data page by geography, topic, and resource type.