Grayslake Central High School
🇺🇸 Official data · 2025Grayslake, Illinois 60030 · Grayslake CHSD 127
#68 of 691 high schools in Illinois
#5674 of 16,910 nationally
About Grayslake Central High School
Grayslake Central High School is a public high located in Grayslake, in the Grayslake CHSD 127 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 1,375 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 60.5 out of 100, placing it in the top 50% of high schools in United States and 68th of 691 ranked high schools in Illinois. Its strongest component is students per teacher (66th percentile), and its weakest is reading proficiency (55th percentile).
Other published figures: enrollment 1,375.
There are 7 schools in Grayslake; Grayslake Central High School ranks 2nd of 7 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)49%
- Reading proficiency (30%)57%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)13.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Grayslake Central High School by the official sources.
- Enrollment
- 1,375
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 13.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 57%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 49%
- Share of tested students proficient or above (all students, all grades).
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Schools near Grayslake Central High School
Closest schools by straight-line distance, with their Success Index (US).
Grayslake Middle School
Grayslake · Public middle · Grades 7–8
641 students · 767 m away
Woodview School
Grayslake · Public elementary · Grades K–4
450 students · 810 m away
Frederick School
Grayslake · Public middle · Grades 5–6
667 students · 1.2 km away
Prairieview School
Hainesville · Public elementary · Grades K–4
400 students · 1.8 km away
Grayslake Early Childhood
Hainesville · Public other · Grades PK–PK
147 students · 1.8 km away
Meadowview School
Grayslake · Public elementary · Grades K–4
351 students · 1.9 km away
Grayslake North High School
Grayslake · Public high · Grades 9–12
1,208 students · 3.1 km away
W J Murphy Elem School
Round Lake Park · Public elementary · Grades K–2
414 students · 3.2 km away
Avon Center Elem School
Round Lake Beach · Public elementary · Grades K–4
361 students · 3.4 km away
Prairie Crossing Charter School
Grayslake · Charter elementary · Grades K–8
433 students · 3.8 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Hinsdale South High School
Darien · Public high · Grades 9–12
1,370 students
Bloomington High School
Bloomington · Public high · Grades 9–12
1,369 students
Kankakee High School
Kankakee · Public high · Grades 9–12
1,360 students
Lake Forest High School
Lake Forest · Public high · Grades 9–12
1,359 students
Belvidere North High Sch
Belvidere · Public high · Grades 9–12
1,354 students
Fenton High School
Bensenville · Public high · Grades 9–12
1,396 students
Frequently asked questions
Is Grayslake Central High School a good school?
Grayslake Central High School has a Success Index (US) of 60.5 out of 100 (Top 50% of high schools in United States) and ranks #68 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Grayslake Central High School rank in Illinois?
Grayslake Central High School ranks #68 of 691 high schools in Illinois and #5674 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Grayslake Central High School?
Grayslake Central High School had 1,375 students in 2025.
Is Grayslake Central High School a elementary school or a high school?
Grayslake Central High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Grayslake Central High School?
There are 10 schools within 15 km of Grayslake Central High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.