Immunizations: Data

Vaccination rates look at the percentage of people who received recommended vaccines. This is also known as immunization rates or vaccination coverage. Vaccination rates are an important way to measure how well communities are protected from vaccine-preventable diseases. We offer reports that break down data by:

  • Vaccine/vaccine series
  • Demographics
  • Geography
  • Year

This helps us see which areas and groups have less protection. Health departments, schools, and partners can then take action to improve those vaccination rates.

The Wisconsin Immunization Registry (WIR) is our source for data on vaccine rates. We note any exceptions on the reports below.

Data pages

RSV immunization data

Two adults and two kids on a blanket at the park

The Department of Health Services (DHS) reports on RSV immunization for infants ages 0-19 months and adults ages 18–49 and 60+ years.

COVID-19 vaccination data

Four smiling adults and two smiling children enjoying a meal at home.

DHS reports on updated COVID-19 vaccination for Wisconsin residents 6 months and older.

Impact of COVID-19 on routine vaccination

A smiling adult with sleeve rolled up showing band aid covered vaccine spot

The COVID-19 pandemic caused many children and teenagers to fall behind schedule for vaccines. This dashboard compares quarterly vaccination rates to the average rates of the three years before the pandemic.

Flu vaccination data

Two adults, two children showing vaccinated arms with Band-Aids

DHS reports on flu vaccinations for people at least 6 months old who have received at least one dose of flu vaccine during the season.

Data reports

MMR vaccination rates by county

Vaccination coverage among Wisconsin children by age 24 months

Vaccination coverage among Wisconsin adolescents aged 13—18 years

Maps showing percent of adolescents aged 13–18 vaccinated by year and county

Other reports on children

Vaccination coverage among Wisconsin adults

Maps showing percent of adults vaccinated by year and county

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Last revised March 11, 2025