Monticello High School at a glance
- National rank: #3,440 (2026-27 edition)
- Illinois rank: #139
- Previous edition: Up from #3,500 in 2023-24
- Graduation rate: 98.1%
- Students: 489
Ranks are from the 2026-27 U.S. News & World Report Best High Schools edition. How HighSchoolTrends uses this data.