Vaccination Coverage and Exemptions among Kindergartners

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View national and state-level school vaccination coverage and exemption estimates using interactive maps, trend lines, bar charts, and data tables. Data collection methodology differs by state.
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New findings on vaccination coverage and exemptions among kindergartners (2025-2026 school year)

Vaccination coverage and exemption estimates among kindergartners in the United States are based on data reported to CDC annually by states and the District of Columbia (DC).

  • During the 2025-2026 school year, vaccination coverage among kindergartners in the United States decreased for all reported vaccines from the year before, ranging from 92.0% for diphtheria, tetanus, and acellular pertussis vaccine (DTaP) to 92.4% for measles, mumps, and rubella vaccine (MMR) and polio vaccine.
  • Coverage with MMR, DTaP, poliovirus vaccine (polio), and varicella vaccine (VAR) decreased in more than half of states, compared with coverage the year before.
  • The number of kindergartners attending school without documentation of completing the MMR vaccine series was about 280,000 during the 2025-2026 school year.

  • During the 2025-2026 school year, exemptions from one or more vaccines among kindergartners in the United States increased to 4.2% from 3.6% the year before.
  • Exemptions increased in 41 states and DC, with 24 states reporting exemptions exceeding 5%.
  • The number of kindergartners exempt from one or more vaccines was about 155,000 during the 2025-2026 school year.

See additional data on measles cases in 2026 in the United States: Measles Cases and Outbreaks | CDC.

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Content Source
National Center for Immunization and Respiratory Diseases; Immunization Services Division
About This Page
Published: September 16, 2024
Updated: August 17, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 17, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.