High School Graduation Rates (2010–2024)

Definition

Four-year adjusted cohort graduation rate. Graduation Rate is calculated based on ESSA High School Graduation Rate guidance found here. Students are
reported at the school where students attend (home school). The cohort is based on the number of students
who enter Grade 9 for the first time, adjusted by adding into the cohort any student who transfers in later
during Grade 9 or during the next three years and subtracting any student from the cohort who transfers out,
emigrates to another country, transfers to a prison or juvenile facility, or dies during that same period.

See here for further information.

Data Source

Illinois State Board of Education (ISBE) Report Card summaries and data sets, available at the Data Library and Interactive Report Card.

Notes

Percent of Students.

Last Updated

2025-12