Kindergarten Immunization Rates by School for 2024-2025

2024-2025 school year data shows vaccination percentages for kindergarten students across mandated vaccine series. The dataset includes coverage rates for Polio, DTaP, MMR, HepB, Varicella, HepA, and All vaccines, plus exemption counts, reported by school. It is published by data.ct.gov and was last updated in August 2025.

Use Cases

• Identify schools with low 'All' vaccine coverage using 'School Name' and 'Planning Region' to target public health interventions.
• Analyze the relationship between 'School Type' and exemption rates ('Ex_Rel', 'Ex_Med', 'Ex_Tot') to understand demographic factors.
• Map geographic clusters of low MMR or Varicella vaccination rates using 'Zipcode' or 'City' columns for outbreak risk assessment.
• Compare DTaP and Polio vaccination percentages across different 'Planning Region's to evaluate regional public health campaign effectiveness.
• Correlate 'HepA' and 'HepB' vaccination rates with school-level demographic data from external sources joined on 'School Name' or 'Zipcode'.

Strengths

• Includes data for six mandated vaccine series (Polio, DTaP, MMR, HepB, Varicella, HepA) plus a composite 'All' metric.
• Provides school-level geographic detail with 'City', 'Zipcode', 'Address', and 'Planning Region' columns.
• Distinguishes between 'Ex_Rel' (Religious) and 'Ex_Med' (Medical) exemption types for granular analysis.

Limitations

• Data for schools with fewer than 30 kindergarteners is suppressed, creating gaps for small schools.
• Relies on school-reported data which may contain discrepancies or reporting errors.
• The dataset only covers the 2024-2025 school year, limiting longitudinal analysis without prior years.

Provenance

Source

data.ct.gov, likely the Connecticut Department of Public Health.

Collection Method

Annual school immunization survey collecting school-level, grade-specific data on vaccine coverage and exemptions.

Time Range

2024-2025 school year.

Freshness

Updated August 2025 with current school year data.

Geography

Schools in Connecticut, USA.