Summary:
Flanagan, Illinois, has two schools serving kindergarten through grade 12: Flanagan Elementary School (PK–8, 197 students) and Flanagan-Cornell High School (grades 9–12, 106 students), with 303 students combined. Their grade spans and reported results differ, so an overall school-to-school achievement ranking would not be like-for-like. The central takeaway is that neither school has a uniformly strong or weak profile: results shift sharply by grade and subject.
Flanagan Elementary stands out in third-grade math: 69% were proficient in 2025–2026, compared with 49% statewide, a 20-point advantage. But its all-grades results were below the state in both math (31% vs. 40%, 9 points lower) and ELA (42% vs. 56%, 14 points lower). At Flanagan-Cornell High, 11th-grade ACT results were near or above state figures: ELA was 50.0% vs. 49.9%, and science was 50% vs. 48%, a 2-point advantage. Its clearest current gap is PreACT ELA: ninth grade scored 44% vs. 62% statewide, 18 points lower; 10th grade scored 48% vs. 54%, 6 points lower.
Recent changes point in different directions. Elementary all-grades math improved by 10 points from 2024–2025 to 2025–2026, while its ELA result was nearly unchanged and its gap below the state widened by 3 points. High-school PreACT ELA fell by 24 points in ninth grade and 23 points in 10th grade over the same period; 11th-grade ACT science also dropped, narrowing its state advantage from 12 points to 2. SchoolDigger placed the elementary school in the 53rd percentile in 2025–2026, up from the 42nd the year before; the high school was in the 45th percentile, after moving from the 37th to the 75th percentile and back. As context, free/reduced lunch eligible shares in 2024–2025 were 39% at the elementary school and 42% at the high school; student-teacher ratios were 9.1 and 8.4, respectively. Chronic absenteeism in 2025–2026 was 6% at the elementary school and 16% at the high school.
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