In the 2021-22 school year, 29.2% of Hinsdale Community Consolidated School District 181 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 50.7% of Indian Prairie School District 204 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 51.5% of Elmhurst School District 205 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 52.7% of Maercker School District 60 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.