Grayslake Central High School
Score 84.5/100: better than 84% of Illinois high 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) | not reported | — |
| English language arts | Grade 7 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 8 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| English language arts | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 76.7 | — |
| English language arts | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 69.5 | — |
| English language arts | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 73.7 | — |
| English language arts | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 73.7 | — |
| 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) | not reported | — |
| Math | Grade 7 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 8 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | not reported | — |
| Math | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 44.3 | — |
| Math | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 36 | — |
| Math | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 50.1 | — |
| Math | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 50.1 | — |
| 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) | not reported | — |
| Science | Grade 9 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 59.5 | — |
| Science | Grade 10 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 60.2 | — |
| Science | Grade 11 | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 65.4 | — |
| Science | All grades | IL Report Card % proficiency (IAR/SAT/ISA/DLM-AA) | 65.4 | — |
School profile
- Grades
- 9-12
- Students
- 1,375
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
"Typical" is the middle (median) high 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).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Grayslake
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.
Grayslake Central High School at a glance
Grayslake Central High School is a public high school in Grayslake, Illinois, serving grades 9-12. It is part of the Grayslake CHSD 127 school district. It has about 1,375 students (a typical Illinois high school has 340).
In 2024-25 state tests, 74% in English language arts (similar schools: 50%) and 50% in math (similar schools: 38%) reached the state standard (% proficient). On our score, which compares it only with other Illinois high schools, it scores 84.5 out of 100: better than 84% of them, ranking #79 of 506. 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.