Illinois school vaccination rates have declined steadily over the past two decades.
Measles protection among students statewide stood at 99% in 2007–08 but fell to a low of 96.5% in 2023–24, a drop that experts warn could leave communities vulnerable to outbreaks of diseases once considered largely eliminated.
Shows the lowest‑reporting public and private school each year
Note: Tdap became a required school vaccine in Illinois beginning with the 2011–12 school year. Earlier data reflects limited, voluntary reporting.
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Source: Illinois State Board of Education Immunization School Survey Results
This interactive graphic was generated using Claude Artificial Intelligence and Illinois State Board of Education and Illinois Department of Public Health data. The information in the graphic was fact-checked and edited by a Shaw Local editor.
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