Jefferson Jr High School
Score 82.4/100: better than 82% of Illinois middle schools on 2024-25 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2024-25)
% proficient on state tests in Illinois, all students. Colored bars are green when the school is at or above the average for similar Illinois schools.
Results over time
How this school's published results have moved year by year. † marks a year when the state changed its test, so that change isn't comparable.
All 26 published results by grade and test
As published by Illinois State Board of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 3 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 4 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 5 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 6 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 74.7 | — |
| English language arts | Grade 7 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 74.5 | — |
| English language arts | Grade 8 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 73.2 | — |
| English language arts | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 74.1 | — |
| Math | Grade 3 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 4 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 5 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 6 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 48.3 | — |
| Math | Grade 7 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 59 | — |
| Math | Grade 8 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 54.1 | — |
| Math | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 54.2 | — |
| Science | Grade 5 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Science | Grade 8 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 65.3 | — |
| Science | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Science | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Science | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Science | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 65.3 | — |
School profile
- Grades
- 6-8
- Students
- 849
- Type
- Middle school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
"Typical" is the middle (median) middle school in Illinois. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).
Nearby middle schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Naperville
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Jefferson Jr High School at a glance
Jefferson Jr High School is a public middle school in Naperville, Illinois, serving grades 6-8. It is part of Naperville CUSD 203. It has about 849 students (a typical Illinois middle school has 427). About 29% of students are eligible for free or reduced-price lunch, compared with 49% at a typical Illinois middle school, which is useful context when reading test results.
In 2024-25 state tests, 74% in English language arts (similar schools: 56%) and 54% in math (similar schools: 35%) reached the state standard (% proficient). On our score, which compares it only with other Illinois middle schools, it scores 82.4 out of 100: better than 82% of them, ranking #108 of 610. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.