Excellent
#372 of 3,813 schools in IL
Top 10% in state
Grayslake Central High School
High School · Grayslake CHSD 127
400 N Lake St, Grayslake, IL 60030
Enrollment
1,375
Student-Teacher
13.2:1
Score
8.1
Grades
9th – 12th
Enrollment
1,375
Student-Teacher
13.2:1
Score
8.1
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Grayslake
#1 of 7
public schools
Illinois high schools
#50 of 703
In district
#1 of 2
Grayslake CHSD 127
School environment
9.1 / 10
Exceptional
About Grayslake Central High School
Grayslake Central High School is a public high school in Grayslake, IL, part of the Grayslake CHSD 127. The school serves approximately 1,375 students in grades 9th – 12th with a student-teacher ratio of 13.2:1. It holds a MySchoolScout rating of 8.1/10, placing it in the 90.3th percentile among IL schools — an above average rating overall.
Students demonstrate 46% proficiency in math and 50% in reading/language arts. The school scores particularly well in school environment (9.1/10). Located in a neighborhood with a median household income of $104,920, where 49% of adults hold a bachelor's degree or higher.
The school is situated in a large suburban setting.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Grayslake Central High School — Students at Grayslake Central High School score 45% proficient, which is below what's typical for similar communities (expected: 49%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
0.1%
Students qualifying for federal meal assistance
Test Scores IL EDFACTS (2021-22)
Based on 5 test records from IL state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.6/10.
How Grayslake Central High School Compares
See how Grayslake Central High School performs across key quality dimensions compared to state benchmarks.
Performance Trends
Math proficiency has declined from 49% (2019) to 43% (2021). Reading/ELA proficiency has declined from 57% (2019) to 47% (2022).
Location
400 N Lake St, Grayslake, IL 60030
Nearby Alternatives
Families considering Grayslake Central High School may also want to explore other high schools in the area. Grayslake North High School (rated 8.1/10, 1.9 miles away), with a very similar rating. Additionally, Round Lake Senior High School (rated 6.0/10, 2.7 miles away, in nearby Round Lake), a more accessible option. For more schools in Grayslake, see our Grayslake schools guide .
Nearby Schools
20 within 3.0 mi| School | Distance | Rating |
|---|---|---|
| Grayslake Middle School Grayslake | 0.5 mi | 5.0 |
| Woodview School Grayslake | 0.5 mi | 5.2 |
| WESTLAKE CHRISTIAN ACADEMY Grayslake | 0.7 mi | 7.3 |
| Frederick School Grayslake | 0.7 mi | 4.5 |
| Meadowview School Grayslake | 1.2 mi | 5.5 |
| ST GILBERT ELEMENTARY SCHOOL Grayslake | 1.0 mi | 4.8 |
| Prairieview School Hainesville | 1.1 mi | 5.9 |
| Grayslake Early Childhood Hainesville | 1.1 mi | 5.9 |
| Grayslake North High School Grayslake | 1.9 mi | 8.1 |
| Avon Center Elem School Round Lake Beach | 2.1 mi | 4.9 |
| W J Murphy Elem School Round Lake Park | 2.0 mi | 6.9 |
| Prairie Crossing Charter School Grayslake | 2.3 mi | 7.0 |
| Round Lake Beach Elem School Round Lake Beach | 2.7 mi | 6.3 |
| THE GODDARD SCHOOL THIRD LAKE Third Lake | 2.6 mi | — |
| CONNECTIONS DAY SCHOOL Libertyville | 2.9 mi | 6.8 |
| Magee Middle School Round Lake | 2.6 mi | 7.7 |
| Round Lake Senior High School Round Lake | 2.7 mi | 6.0 |
| Park East School Round Lake | 2.8 mi | 7.1 |
| Park West School Round Lake | 2.8 mi | 5.5 |
| Village Elementary School Round Lake | 3.0 mi | 5.3 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 60030 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$104,920
Median Home Value
$276,800
Median Rent
$1,526/mo
Population
35,579
College Educated
49.4%
Homeownership
82.7%
Avg Commute
27 min
Poverty Rate
5.3%
Median Age
40.9
Community Profile
The community surrounding Grayslake Central High School has a median household income of $104,920. It is a well-educated community where 49% of adults hold a bachelor's degree or higher. The median home value in the area is $276,800, with a median rent of $1,526/month. The local poverty rate of 5.3% is relatively low. The average commute for residents is 27 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Grayslake North High School Grayslake, IL | 8.1 |
| Geneva Community High School Geneva, IL | 8.2 |
| Lake Forest High School Lake Forest, IL | 8.2 |
| Wheaton North High School Wheaton, IL | 8.2 |
| Addison Trail High School Addison, IL | 7.9 |
| Springfield High School Springfield, IL | 7.9 |
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 is ranked #372 out of 3,813 schools in IL.
What is Grayslake Central High School's MySchoolScout rating?
Grayslake Central High School has a composite rating of 8.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Grayslake Central High School?
Based on the most recent state assessment data, Grayslake Central High School has 46.0% math proficiency and 50.0% reading/ELA proficiency.
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.
Neighborhood Context
- Walk Score
- 65 Somewhat Walkable
- Transit Score
- 21 Minimal Transit
- Bike Score
- 53 Bikeable
- City Safety
- Elevated (711/100K)
Powered by 
FBI UCR 2024. City-level (Grayslake). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,375
- Student-Teacher Ratio
- 13.2:1
- Teachers (FTE)
- 104
- Type
- regular
- Setting
- Large Suburb
- County
- Lake County
- Phone
- (847) 986-3300
- Data Year
- 2023–2024
Resources & Links
District
Grayslake CHSD 127- District Enrollment
- 2,581
- Schools in District
- 2
- Per-Pupil Spending
- $25,157
- District Rank
- #1 of 2
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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