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Average Private School ACT Scores in Illinois

The averageprivate school ACT score in Illinois is 25 (2026-27).

The private school in Illinois with the highest ACT score is Universal School, with an ACT score of 35.

Quick Facts (2026-27)

# IL Schools Ranked: 62
Top 20 Range (Avg ACT): 26–35
IL School Avg.: 25.1
National School Avg.: 25

Quick Facts (2026-27)

# IL Schools Ranked: 62
Top 20 Range (Avg ACT): 26–35
IL School Avg.: 25.1
National School Avg.: 25

Illinois Average ACT Score (Trends)

View Data

Year	Illinois (IL) avg
2025	25
2024	25
2023	25
2022	25
2021	25
2020	25
2019	25
2018	25
2017	25
2016	24
2015	24

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Show school map — Illinois (avg ACT range: 26–35, avg 25.1)

Act Score Range: 24 35 Avg. Act Score: 27

Frequently Asked Questions

What is the Illinois average private schools ACT score?

The Illinois average private schools ACT score is 25 for 2026-27.

What are the private schools with the highest ACT score in Illinois?

The top ranked private schools in Illinois include Universal School, Lake Forest Academy and Timothy Christian Schools.

What is private high school and private elementary school with the highest ACT score in Illinois?

The private high school with the highest ACT score in Illinois is Universal School, with a value of 35. The private elementary school with the highest ACT score is Universal School, with a value of 35.

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