Metro East school reports › St. Clair County › Marissa CUSD 40
Marissa Jr & Senior High School
Marissa Jr & Senior High School is a public high school in Marissa CUSD 40, serving grades 7 - 12 in Marissa, St. Clair County, Illinois. In the 2025 Illinois Report Card (2024-25 school year), the Illinois State Board of Education designated it Commendable, the same designation it received in 2023 and 2024.
State designation, last three report cards
- 2023Commendable
- 2024Commendable
- 2025Commendable
What Commendable means: No student group performing at or below the level of the lowest 5 percent of schools, and overall performance outside the top 10 percent statewide.
How it compares with other St. Clair County high schools
| Measure | This school | County median | Diff. |
|---|---|---|---|
| ELA proficiency | 60.0% | 50.0%10 schools | +10.0 pts |
| Math proficiency | 30.0% | 32.3%9 schools | -2.3 pts |
| Chronic absenteeism | 22.9% | 38.0%12 schools | -15.1 pts |
| Average class size | 12.5 | 18.912 schools | -6.4 |
| Low-income enrollment | 58.4% | 52.3%12 schools | +6.1 pts |
Median of other high schools in St. Clair County with reported data, this school excluded, not weighted by enrollment. Proficiency is from the 2024-25 state tests. Illinois changed its proficiency cut scores in 2025, so these percentages cannot be compared with earlier years.
What stands out
- Chronic absenteeism is 15.1 points below the median for other St. Clair County high schools (38.0%). A relative strength.
- ELA proficiency is 10.0 points above the median for other St. Clair County high schools (50.0%). A relative strength.
Before you buy for this school
- Confirm the attendance boundary for the exact address with Marissa CUSD 40. Boundaries change, and a listing's school field is not a guarantee.
- Visit. A designation summarizes test results, growth and attendance. It does not describe a classroom.
- Read the full report card for student-group results, growth and staffing.
Looking for a home near Marissa Jr & Senior High School?
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Other schools in Marissa CUSD 40
- Marissa Elementary School Commendable
Sources
- Illinois Report Card: Marissa Jr & Senior High School
- ISBE Report Card Public Data Sets, 2023, 2024 and 2025, retrieved 2026-10-06
- ISBE 2025 Report Card Glossary (designation definitions)
This page reports state-published data. It is not a rating or recommendation by Single Tree Team.
