Excellent
#178 of 3,813 schools in IL
Top 5% in state
Grayslake Central High School
High School · Grayslake Chsd 127 · Grayslake, IL
A Grayslake Chsd 127 high school where students score 4 points below what's typical for similar communities.
400 N Lake St, Grayslake, IL 60030
- Math 43% proficient (2021)
- Reading 47% proficient (2022)
- 5/5 advanced STEM subjects
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Grayslake Central High School score 45% proficient, which is below what's typical for similar communities (expected: 49%).
2022 EdFacts proficiency
Most recent published year. School vs. IL average.
Trend
↓ DecliningProficiency has fallen 6 points since 2019, to 47% in 2022, across a 14-year record (2009–2022).
Show all 14 years
Multi-year averages used by the rating model: math 49% (multi-year average, 2009-2021) · reading/ELA 58% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 27 test records from IL state assessments and EdFacts (NCES).
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Grayslake Central High School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Chicago map →
Getting around & local context
- Walk 65Somewhat Walkable
- Transit 21Minimal Transit
- Bike 53Bikeable
- City Safety: Elevated711/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Grayslake), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$104,920
Median home value
$276,800
Median rent
$1,526/mo
College educated
49.4%
Homeownership
82.7%
Poverty rate
5.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 60030; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Westlake Christian AcademyPrivate · tuition | 7.3private | PK–12 | 0.7 mi | 221 | Compare → |
| Grayslake North High SchoolEnrollment path unverified | 8.6 | 9–12 | 1.9 mi | 1,206 | Compare → |
| Round Lake Senior High SchoolEnrollment path unverified | 5.5 | 9–12 | 2.7 mi | 2,226 | Compare → |
| Connections Day SchoolPrivate · tuition | 6.8private | 3–12 | 2.9 mi | 66 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Grayslake Chsd 127
- Schools in district
- 2
- Rank in district
- #1 of 2
- District spending per student
- $25,157NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 4.5%Census SAIPE · 2024
Grayslake Central High School is listed in Grayslake CHSD 127; a district label does not verify attendance for an address.
About Grayslake Central High School
Grayslake Central High School is a public high school in Grayslake, IL, part of Grayslake Chsd 127, serving approximately 1,375 students in grades 9th-12th with a 13.2:1 student-teacher ratio. It holds a MySchoolScout rating of 8.9 out of 10 and ranks #178 of 3,813 schools in IL. State assessment records show 49% math proficiency (multi-year average, 2009-2021) and 58% reading/ELA proficiency (multi-year average, 2009-2022).
Frequently asked questions
Common questions about Grayslake Central High School
What grades does Grayslake Central High School serve?
Grayslake Central High School serves students in grades 9th through 12th.
How many students attend Grayslake Central High School?
Grayslake Central High School has an enrollment of approximately 1,375 students.
What is the student-teacher ratio at Grayslake Central High School?
The student-teacher ratio at Grayslake Central High School is 13.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Grayslake Central High School rank in IL?
Grayslake Central High School ranks #178 of 3,813 schools in IL.
What is Grayslake Central High School's MySchoolScout rating?
Grayslake Central High School has a current MySchoolScout rating of 8.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Grayslake Central High School?
Based on loaded state assessment records, Grayslake Central High School has 49% math proficiency (multi-year average, 2009-2021) and 58% reading/ELA proficiency (multi-year average, 2009-2022).
Is Grayslake Central High School a charter school?
No, Grayslake Central High School is not a charter school. It is a traditional public school operated by the local school district.
Is Grayslake Central High School a Title I school?
No, Grayslake Central High School is not currently a Title I school.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 1,375
- Student-Teacher Ratio
- 13.2:1
- Teachers (FTE)
- 104
- Type
- regular
- Setting
- Large Suburb
- County
- Lake County
- Chronic Absenteeism (SY 2022-23)
- 16.2%
- Phone
- (847) 986-3300
- Area population (ZIP 60030)
- 35,579
- Area average commute
- 27 min
- Area median age
- 40.9
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2021 EdFacts · Low confidence
- Older source: 2021 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 60030; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2021, multi-year average, 2009-2022; directory SY 2023–24
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