Immunizations
Last updated: 3/26/2026
Childhood Immunizations
Child immunization data include the percent of children that received the recommended doses of 4 DTaP, 3 Polio, 1 MMR, 3 Hib, 3 Hepatitis B, 1 Varicella and 4 PCV vaccines and the 4:3:1:3:3:1:4 series by age 24 months (2 years old). Iowa immunization data and rates are available in interactive maps and tables by single antigen and the completed series. These data provide immunization rates based upon a recommended vaccination series identified by the Advisory Committee on Immunization Practices (ACIP) and the Centers for Disease Control and Prevention (CDC). These data can identify trends and patterns in immunization coverage over time and in different geographic areas.
2-Year-Old Children Immunization Data Visualization
2024 Childhood Immunizations Data Summary
The Immunization Program uses data from the Immunization Registry Information System (IRIS) to calculate county and state immunization rates for 2-year-old children. The data include patients served by both public and private health care providers with a record in IRIS that have a zip code and are an “active” patient within a health care provider organization. The year selected in the visualization will include children turning 2 years old in that year. For example, the 2024 results include children born between 01/01/2022–12/31/2022.
Measure Description:
- Number of Immunized Patients: The number of Iowa residents recorded in IRIS that have received a dose or completed a specific vaccine series.
- Patients in IRIS: The number of patient records in IRIS.
- County 2-Year-Old Census Population: The Number of 2 Year Olds in the County, based on census estimates
County Immunization Report
The county immunization report provides a snapshot of immunization data and allows users to filter data based on county and year of interest. Users also have the ability to download the report to PDF. Currently, childhood, adolescent, HPV and adult immunization county reports are available for download.
To access and download a specific county report, select the following link and select the County and Year from the drop-down. Download the PDF using the button on the bottom right of the report.
Adolescent Immunizations
Adolescent immunization data includes the percent of 13-15 year olds that received the recommended doses of 3 Hepatitis B, 1 Meningococcal, 2 MMR, 1 Td/Tdap, and 2 Varicella vaccines and the 3:1:2:1:2 series. Iowa immunization data and rates are available in interactive maps and tables by single antigen and the completed series. These data provide immunization rates based upon a standard vaccination series identified by the Advisory Committee on Immunization Practices (ACIP) and the Centers for Disease Control and Prevention (CDC). These data can be used to identify trends and patterns in immunization coverage over time and in different geographic areas.
13–15-Year-Old Adolescent Immunization Data Visualization
2024 Adolescent Immunizations Data Summary
The Iowa Immunization Program uses data from the Immunization Registry Information System (IRIS) to calculate county and state immunization rates for adolescents 13–15 years of age. This data includes patients served by both public and private health care providers with a record in IRIS that have a zip code and are an “active” patient within a health care provider organization. The Year selected in the visualization will include adolescents turning 13–15 years old in that year. For example, the 2024 results include children born between 01/01/2009–12/31/2011.
Measure Description:
- Number of Immunized Patients: The number of Iowa residents recorded in IRIS that have received a dose or completed a specific vaccine series.
- Patients in IRIS: The number of patient records in IRIS.
- County Adolescent Census Population: The Number of Adolescent in the County, based on Census estimates.
County Immunization Report
The county immunization report provides a snapshot of immunization data and allows users to filter data based on county and year of interest. Users also have the ability to download the report to PDF. Currently, childhood, adolescent, HPV, and adult immunization county reports are available for download.
To access and download a specific county report, select the following link and select the County and Year from the drop-down. Download the PDF using the button on the bottom right of the report.
Adolescent Immunization Report
Adult Immunizations 
Adult immunization data includes the percent of Iowa residents that received the recommended doses of Tdap, HPV, Pneumococcal, Hepatitis A, and Zoster vaccine, based on recommended age groups. Iowa immunization data and rates are available in interactive maps and tables by vaccine and completed vaccine series.
These data provide immunization rates based upon a standard vaccination series identified by the Advisory Committee on Immunization Practices (ACIP) and the Centers for Disease Control and Prevention (CDC). These data can be used to identify trends and patterns in immunization coverage over time and in different geographic areas.
Adult Immunization Data Visualization
2024 Adult Immunizations Data Summary
The Iowa Immunization Program uses data from the Immunization Registry Information System (IRIS) to calculate county and state immunization rates for adults. This data includes patients served by both public and private healthcare providers with a record in IRIS that have a zip code and are an “active” patient within a healthcare provider organization. The Year selected in the visualization will include adults within that age group in that year.
Measure Description:
- Number of Immunized Patients: The number of Iowa residents recorded in IRIS that have received a dose or completed a specific vaccine series in a certain age range.
- Patients in IRIS: The number of patient records in IRIS.
- County Adult Census Population: The Number of adults in the County, based on Census estimates.
County Immunization Report
The county immunization report provides a snapshot of immunization data and allows users to filter data based on county and year of interest. Users also have the ability to download the report to PDF. Currently, childhood, adolescent, HPV, and adult immunization county reports are available for download.
To access and download a specific county report, select the following link and select the County and Year from the drop-down. Download the PDF using the button on the bottom right of the report.
