Increasing the proportion of persons, including children, who are vaccinated annually against seasonal influenza is a Healthy People 2030 Leading Health Indicator. Vaccination is effective in preventing influenza. The Advisory Committee on Immunization Practices recommends an annual influenza vaccination for children aged 6 months and over. This report examines the percentage of children aged 6 months through 17 years who had an influenza vaccination in the past 12 months using data from the 2019 National Health Interview Survey.