Illinois Public High Schools Ranked by ACT Score

Illinois high schools ranked by average school ACT score. Data provided by the Illinois State Board of Education for test year 2017.

    • #1 ACT Score Public High School in Illinois
    • 29.8 Average ACT Score
    • #2 ACT Score Public High School in Illinois
    • 29.4 Average ACT Score
  1. Chicago, Illinois

    • #3 ACT Score Public High School in Illinois
    • 28 Average ACT Score
    • #4 ACT Score Public High School in Illinois
    • 27.8 Average ACT Score
  2. Northbrook, Illinois

    • #5 ACT Score Public High School in Illinois
    • 27.1 Average ACT Score
  3. Lincolnshire, Illinois

    • #6 ACT Score Public High School in Illinois
    • 26.9 Average ACT Score
    • #7 ACT Score Public High School in Illinois
    • 26.6 Average ACT Score
  4. Deerfield, Illinois

    • #8 ACT Score Public High School in Illinois
    • 26.4 Average ACT Score
    • #9 ACT Score Public High School in Illinois
    • 26.3 Average ACT Score
  5. Lake Forest, Illinois

    • #10 ACT Score Public High School in Illinois
    • 26.3 Average ACT Score
  6. Naperville, Illinois

    • #11 ACT Score Public High School in Illinois
    • 26.1 Average ACT Score
  7. Libertyville, Illinois

    • #12 ACT Score Public High School in Illinois
    • 25.9 Average ACT Score
  8. Glenview, Illinois

    • #13 ACT Score Public High School in Illinois
    • 25.7 Average ACT Score
    • #14 ACT Score Public High School in Illinois
    • 25.5 Average ACT Score
  9. Palatine, Illinois

    • #15 ACT Score Public High School in Illinois
    • 25.3 Average ACT Score
  10. Arlington Heights, Illinois

    • #16 ACT Score Public High School in Illinois
    • 25.2 Average ACT Score
  11. Highland Park, Illinois

    • #17 ACT Score Public High School in Illinois
    • 25.2 Average ACT Score
  12. Vernon Hills, Illinois

    • #18 ACT Score Public High School in Illinois
    • 25.1 Average ACT Score
  13. Naperville, Illinois

    • #19 ACT Score Public High School in Illinois
    • 25.1 Average ACT Score
  14. Mt Prospect, Illinois

    • #20 ACT Score Public High School in Illinois
    • 25 Average ACT Score