Summary:
ZIP code 60048 has one high school, Libertyville High School, serving grades 9–12 and enrolling 1,777 students. Its results are substantially above state figures across the reported tests: every one of its 18 subject-and-grade comparisons is higher, with advantages ranging from 29 to 40 percentage points. That broad strength across grades and subjects is the most important finding for families considering this area.
Libertyville is both the top and the bottom of this one-school list, so there is no local school-to-school comparison. SchoolDigger ranks it 15th of 620 schools statewide for 2025–26, at the 98th percentile, with five stars. Its largest reported lead over the state is in grade 11 mathematics: 80% proficiency versus 40%, a 40-point advantage. Its smallest is grade 9 mathematics in 2024–25, when it scored 67% versus 38%, a 29-point lead. The school also compares favorably with state figures for graduation and attendance: a 95% graduation rate versus 90%, and 14% chronic absenteeism versus 24%.
Overall test results improved, and the school’s average lead over the state widened. Across the same nine grade-and-subject cells, Libertyville averaged 80% in 2024–25 and 82% in 2025–26, while the state averaged 48% and 47%; the school-state gap grew from 32 to 34 points. Improvement was not uniform: grade 9 ELA fell by 1 point, grade 9 science stayed level, and grade 10 science fell by 3 points. The school’s student-teacher ratio is 13.5, and 5% of students were free/reduced lunch eligible in 2021–22; these are context figures, not comparisons with another local school.
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