Summary:
Zip code 60152 has one high school, Marengo High School, serving grades 9–12 and 685 students. With no other high schools in the list, families have no local school-to-school comparison; the clearest benchmark is the state. In 2025–2026, Marengo’s results were above the state in all nine reported test comparisons, and its strongest overall advantage was in science.
Marengo High School is both the area’s only school and its sole school-level standout, rather than a school shown to outperform local peers. Its average advantage over the state was 12 percentage points in science, 7 in mathematics and 6 in ELA. The largest individual lead was 15 points in grade 10 PreACT science (63% proficient compared with 48% statewide); the smallest was 2 points in grade 11 ACT ELA (52% versus 50%). Strong test results sit alongside less favorable outcomes: graduation was 88%, compared with 90% statewide, while chronic absenteeism was 25%, compared with 24% statewide.
Across the same nine test comparisons, Marengo’s average result rose from 55% in 2024–2025 to 56% in 2025–2026, and its average lead over the state widened from 7 to 8 points. Some results moved the other way: grade 11 ACT ELA fell 5 points and grade 10 PreACT ELA fell 4, while grade 9 PreACT ELA rose 6 points and PreACT mathematics improved in both grades. SchoolDigger placed Marengo at the 63rd percentile with 3 stars in 2023–2024, then the 81st percentile with 4 stars in 2024–2025 and the 79th percentile with 4 stars in 2025–2026. The school also reported a 14.4 student-teacher ratio in 2024–2025 and 32% free/reduced lunch eligible that year.
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