Summary:
Mendota Township HSD 280 has one listed school, Mendota Township High School, serving grades 9–12 and enrolling 493 students, so there are no other local schools to compare it with. Its graduation rate was close to Illinois’s in 2025–2026 (89% versus 90%), and chronic absenteeism was lower (16% versus 24%, a 7-point difference). The clearest academic concern is science: all three reported grade-and-test results were below the state, averaging 12 percentage points lower.
Within the school’s state comparisons, 9th-grade PreACT ELA stands out most positively: 65% proficient, about 4 points above Illinois; 9th-grade PreACT math matched the state at 42%. At the other end, the lowest reported result was 10th-grade PreACT math at 25%, 12 points below the state. The widest gap was in 9th-grade science, at 33% compared with 47% statewide, or 14 points lower. Because this is the area’s only school, these are comparisons with Illinois, not rankings against neighboring schools.
Results changed in different directions by grade and subject: from 2024–2025 to 2025–2026, 9th-grade ELA rose from 54% to 65% and 9th-grade math from 32% to 42%, while 10th-grade ELA fell from 54% to 44%, math from 30% to 25%, and science from 45% to 36%. Across the nine comparisons, the average gap with the state narrowed by about 1 percentage point, but that modest shift masks these contrasting changes. SchoolDigger’s school rank-history percentile was 40 in 2025–2026, following 48 in 2024–2025 and 46 in 2023–2024; its separate district listing shows 544th of 738, the 26th percentile, and one star. As context, the school reported 56% free/reduced lunch eligible in 2024–2025 and a student–teacher ratio of 13.3 that year; these figures describe the school and do not explain its results.
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