Immunizations: Child and Adolescent Vaccine Data
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Vaccines are one of the most important tools we have to keep people healthy. Different vaccines are recommended at different ages, from birth all the way to adulthood. Getting vaccines at the recommended age provides children and adolescents with the best protection from serious diseases.
You can visit the Wisconsin Immunization Registry
Almost half of Wisconsin children and adolescents are eligible for free vaccines. To learn if your child is eligible and to find a provider, visit the Vaccines for Children (VFC) webpage. If you are a health care provider, visit the VFC provider webpage.
The data on this webpage shows the vaccination rates of adolescents and 24-month-old children. The data is updated annually. See "Vaccines included in the dashboard" section on this page for more information on vaccines included in the dashboards.
Annual child and adolescent vaccination data
This dashboard shows the percent of Wisconsin adolescents and 24-month-old children who received the recommended routine vaccinations. The data is by shown sex, race, ethnicity, and social vulnerability for each vaccine or vaccine series.
The data by race, ethnicity, sex, and social vulnerability can be used to identify health disparities and can inform vaccination efforts.
The Social Vulnerability Index (SVI) was created by the CDC and Agency for Toxic Substances and Disease Registry (ATSDR). The index ranks census tracts based on 16 measures, such as percent of people without health insurance, percent of people without a vehicle, and percent of people below 150% poverty.
Individuals living in census tracts with high social vulnerability may experience additional barriers to vaccination. High social vulnerability was defined as individuals living in a census tract that is in the top 25% for vulnerability in Wisconsin. Census tracts designated as high vulnerability would have the highest levels in Wisconsin of the measures included, such as high levels of poverty.
Low social vulnerability was defined as individuals living in a census tract that is in the bottom 25% for vulnerability in Wisconsin. Census tracts with the low social vulnerability have the lowest levels of the measures included, such as low levels of people that are uninsured.
Data source: The Wisconsin Immunization Registry (WIR).
Reporting to WIR is not required for all vaccines given. Reporting to WIR is only mandatory in certain circumstances.
Vaccination Coverage: The number of children or adolescent who received the vaccine divided by the number of individuals in that population and multiplied by 100.
For children, only vaccinations received by 24 months of age were counted. One exception is the hepatitis B birth dose which was only counted if it was received within three days of birth.
For adolescents, all vaccinations received before and during the specified year were counted. One exception is the meningococcal B vaccine which was only counted if it was received prior to their 19th birthday.
Population: Individuals in the Wisconsin Immunization Registry.
Before 2023, individuals who were reported with a non-Wisconsin address and deceased individuals were excluded from our calculation of coverage rates. Starting in 2023, the exclusion criteria was expanded to provide a more accurate population denominator by removing individuals whose records have not had activity for an extended period of time and therefore may no longer reside in Wisconsin. The additional excluded records were clients at least 11 years old, whose records were not updated in at least 10 years, and not queried in at least five years. Due to the change in methodology, data from 2023 and later is not comparable to previous years.
Demographic information, such as sex, race, and ethnicity are not required to be reported. In 2024, for children, 9% were missing race, 7% were missing ethnicity, and .04% were missing sex. For adolescents, 9% were missing race, 4% were missing ethnicity and .2% were missing sex. At this time, data in WIR is based on sex (male/female) and does not capture gender identity. Additionally, WIR cannot store multiple race variables for an individual.
Social Vulnerability Index (SVI): Census tract social vulnerability data came from the 2022 state-based CDC/ATSDR SVI database. The quartiles were created in alignment with CDC/ATSDR SVI interactive map, where a percentile ranking of 0.7500 to 1.0 was categorized as high vulnerability and a SVI ranking of 0.0 to 0.2500 was categorized as low vulnerability. Each individual was assigned a SVI quartile based off the census tract of their primary address in the year of analysis. To learn more about the social vulnerability, visit the ASTDR and CDC webpage about the
Children's vaccines
| Vaccine or vaccine series abbreviation | Definition |
|---|---|
| 4:3:1:3:3:1:4 series or child series | At least 4 doses of DTaP, 3 doses of poliovirus, 1 dose of MMR, 3 doses of Hib, 3 doses of HepB, 1 dose of varicella, and 4 doses of PCV. |
| DTaP (4) | 4 or more valid doses of diphtheria-tetanus-acellular pertussis vaccine. |
| HepA (1) | 1 or more valid doses of hepatitis A vaccine. |
| HepA (2) | 2 or more valid doses of hepatitis A vaccine. |
| HepB Birth Dose | 1 dose of hepatitis B vaccine within 3 days of birth. |
| HepB (3) | 3 or more valid doses of hepatitis B vaccine. |
| Hib (3) | 3 or more valid doses of Haemophilus influenzae type b vaccine. |
| MMR (1) | 1 or more valid doses of measles, mumps, rubella vaccine. |
| PCV (4) | 4 or more valid doses of pneumococcal conjugate vaccine. |
| Polio (3) | 3 or more valid doses of poliovirus vaccine. |
| Var (1) | 1 or more valid doses of varicella (chickenpox) vaccine. |
Adolescent vaccines
| Vaccine or vaccine series abbreviation | Definition |
|---|---|
| HPV (1) | 1 or more valid doses of human papillomavirus vaccine. |
| HPV Complete | 2 or 3 valid doses of human papillomavirus vaccine, depending on age at vaccine series initiation. Prior to 2017, HPV complete rates reflect a 3 dose series. |
| Mening ACWY (1) | 1 or more valid doses of meningococcal ACWY vaccine. |
| Mening ACWY Complete | 2 or more valid doses of the meningococcal ACWY vaccine with one received prior to age 16 years and a booster dose at or after 16 years. 1 valid dose of the meningococcal ACWY vaccine if the first dose was given at age 16 or older. |
| Mening B (1) | 1 or more valid doses of meningococcal B vaccine for clients prior to age 19 years. |
| Mening B (2) | 2 or more valid doses of meningococcal B vaccine for clients prior to age 19 years. |
| Tdap (1) | 1 or more valid doses of tetanus-diphtheria-acellular pertussis vaccine. |
Click the following links to download the data.
For questions about the dashboards or data, email the Immunization Program at
County and regional vaccination rates of children and adolescents
This dashboard shows the percent of Wisconsin 2-year-olds and adolescents vaccinated for recommended routine vaccinations by county and region for the previous year and over time.
Data source: The Wisconsin Immunization Registry (WIR).
Reporting to WIR is not required for all vaccines given. Reporting to WIR is only mandatory in certain circumstances.
Vaccination Coverage: The number of children or adolescent who received the vaccine divided by the number of individuals in that population and multiplied by 100.
For children, only vaccinations received by 24 months of age were counted. One exception is the hepatitis B birth dose which was only counted if it was received within three days of birth.
For adolescents, all vaccinations received before and during the specified year were counted. One exception is the meningococcal B vaccine which was only counted if it was received prior to their 19th birthday.
Population: Individuals in the Wisconsin Immunization Registry.
Before 2023, individuals who were reported with a non-Wisconsin address and deceased individuals were excluded from our calculation of coverage rates. Starting in 2023, the exclusion criteria was expanded to provide a more accurate population denominator by removing individuals whose records have not had activity for an extended period of time and therefore may no longer reside in Wisconsin. The additional excluded records were clients at least 11 years old, whose records were not updated in at least 10 years, and not queried in at least five years. Due to the change in methodology, data from 2023 and later is not comparable to previous years.
Address information, such as county, is not required to be reported in the WIR. In 2024, county and region information was unknown for .21% of children and .28% of adolescents.
Children's vaccines
| Vaccine or vaccine series abbreviation | Definition |
|---|---|
| 4:3:1:3:3:1:4 series or child series | At least 4 doses of DTaP, 3 doses of poliovirus, 1 dose of MMR, 3 doses of Hib, 3 doses of HepB, 1 dose of varicella, and 4 doses of PCV. |
| DTaP (4) | 4 or more valid doses of diphtheria-tetanus-acellular pertussis vaccine. |
| HepA (1) | 1 or more valid doses of hepatitis A vaccine. |
| HepA (2) | 2 or more valid doses of hepatitis A vaccine. |
| HepB Birth Dose | 1 dose of hepatitis B vaccine within 3 days of birth. |
| HepB (3) | 3 or more valid doses of hepatitis B vaccine. |
| Hib (3) | 3 or more valid doses of Haemophilus influenzae type b vaccine. |
| MMR (1) | 1 or more valid doses of measles, mumps, rubella vaccine. |
| PCV (4) | 4 or more valid doses of pneumococcal conjugate vaccine. |
| Polio (3) | 3 or more valid doses of poliovirus vaccine. |
| Var (1) | 1 or more valid doses of varicella (chickenpox) vaccine. |
Adolescent vaccines
| Vaccine or vaccine series abbreviation | Definition |
|---|---|
| HPV (1) | 1 or more valid doses of human papillomavirus vaccine. |
| HPV Complete | 2 or 3 valid doses of human papillomavirus vaccine, depending on age at vaccine series initiation. Prior to 2017, HPV complete rates reflect a 3 dose series. |
| Mening ACWY (1) | 1 or more valid doses of meningococcal ACWY vaccine. |
| Mening ACWY Complete | 2 or more valid doses of the meningococcal ACWY vaccine with one received prior to age 16 years and a booster dose at or after 16 years. 1 valid dose of the meningococcal ACWY vaccine if the first dose was given at age 16 or older. |
| Mening B (1) | 1 or more valid doses of meningococcal B vaccine for clients prior to age 19 years |
| Mening B (2) | 2 or more valid doses of meningococcal B vaccine for clients prior to age 19 years. |
| Tdap (1) | 1 or more valid doses of tetanus-diphtheria-acellular pertussis vaccine. |
Select the links below to download the data.
For questions about the dashboards or data, email the Immunization program at
MMR vaccination rates by county
- MMR vaccination rate maps, P-02420 (PDF) (updated March 2025)
- Download an excel file of MMR vaccination rate data (Excel)