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Resource | Research and Data | General/Other National and State-Level Estimates of WIC Eligibility and Program Reach in 2023

This report, the latest in an annual series, presents 2023 national and state-level estimates of the number of people eligible to receive benefits provided through the Special Supplemental Nutrition Program for Women, Infants, and Children and the percentage of the eligible population and the general U.S. population participating in the program.

12/04/2025
Basic page Report Series - National and State-Level Estimates of WIC Eligibility and Program Reach

This series of annual reports presents national and state-level estimates of the number of people eligible to receive WIC benefits and the percentage of the eligible population and the general U.S. population participating in WIC.

12/04/2025
Resource | Research and Data WIC Infant and Toddler Feeding Practices Study-2: Ninth Year Report

This report, in the WIC Infant and Toddler Feeding Practices Study 2 (WIC ITFPS-2)/ “Feeding My Baby” Study analyzes the long-term impact of the USDA’s Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) by gathering information on caregivers and children over the first nine years of the child's life after enrollment in WIC, regardless of their continued participation in the program.

05/22/2025
Resource | Research and Data Development of a WIC Participant and Program Characteristics Longitudinal Data Set

The goal of this study was to pilot creating a WIC participant characteristics (PC) longitudinal data set with one WIC state agency. Eight state agencies with varying management information systems (MIS) platforms and high quality WIC PC 2020 data completed a survey about their MIS and longitudinal data provision capabilities. The survey assessed these state agencies’ MIS capabilities, as measured in six areas, to provide a longitudinal data set. This report describes the process of working with one WIC state agency to create a pilot WIC PC longitudinal data set of infant and child participants and the challenges and successes of this effort.

04/15/2025
Resource | Research and Data | Participation Characteristics The WIC Participant and Program Characteristics 2012: Food Package Report

The WIC Participant and Program Characteristics 2012: Food Package Report is a supplement to the WIC Participant and Program Characteristics 2012 biennial report. The Food Package Report describes the content of WIC food packages based on information on the packages or prescriptions issued to WIC participants in April 2012. This report is a new report and should be of interest to researchers at USDA, academics, and others who study or have interest in the WIC program and nutrition.

11/12/2014
Resource | Research and Data National and State-Level Estimates of Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) Eligibles and Program Reach, 2011

This report offers updated estimates of the number of people eligible for WIC benefits in 2011, including (1) estimates by participant category (including children by single year of age) and coverage rates; (2) updated estimates in U.S. territories; and (3) confidence intervals. The national estimates presented in this report are based on a methodology developed in 2003 by the Committee on National Statistics of the National Research Council (CNSTAT).

03/20/2014
Resource | Research and Data | Participation Characteristics Dynamics of WIC Program Participation by Infants and Children, 2001 to 2003

This report provides information on the participation patterns of infants and children who were enrolled in WIC from fiscal years 2001 through 2003.

04/01/2009
Resource | Research and Data | Participation Characteristics WIC Dynamics Study

WIC Dynamics is a study of the impact of participation growth associated with infant formula rebates, new regulatory and legislative requirements, economic factors occurred since 1988.

02/01/1995
Page updated: September 16, 2025