Summary:
The Illinois Mathematics and Science Academy is the only school in this list, serving grades 10–12 and enrolling 656 students in Illinois. Its reported 2025–2026 proficiency was exceptionally high across all six ACT and PreACT Secure subject results. The most important finding is that it outperformed Illinois in every subject-and-test comparison, with an average advantage of 53 percentage points across the six results.
Because the area list contains only one school, there is no local top-to-bottom comparison; the academy is the sole school to consider. Mathematics is its strongest subject relative to the state: its average advantage was 61 points, compared with 50 points in science and 47 in ELA. For example, 10th-grade mathematics proficiency was 99% at the school and 36% statewide, a 63-point gap. SchoolDigger ranks the academy first in its current listing, 1 of 738, and first in each of its two most recent yearly rankings.
Results remained near the same high level year to year, and the average advantage over Illinois widened slightly. The school’s average across the six results rose from 98% in 2024–2025 to 99% in 2025–2026, while the state average dipped from 47% to 46%; the average gap grew from 52 to 53 points. The pattern was not uniformly upward: the school improved in five of six test-and-subject comparisons, while 10th-grade science proficiency fell by 1 point, from 99.5% to 98.3%. Its reported student-teacher ratio was 20.5 for 2024–2025. No low-income measure is supplied, and with one school there is no meaningful within-area comparison.
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