Grayslake Central High School
SchoolGrade
A quick view of overall attainment (SchoolGrade) and how the school performs relative to its context.
SchoolGrade™
A single grade anchored in proficiency (share of students at or above the state bar).
Actual Test Scores
Percent of tested students who met or exceeded the state’s proficiency bar.
Projected Test Scores
Estimated proficiency given the school’s student and community context.
When comparing actual test scores to projected performance based on socioeconomic factors, Grayslake Central High School Meets Expectations compared to other schools in the US.
What is SchoolGrade™?
- SchoolGrade converts proficiency into a single grade for quick comparison.
- Actual vs. Projected shows how much performance exceeds or trails what we’d expect given student and community context.
- Teacher Grade summarizes that gap at the school level; it is not an evaluation of individual teachers.
Academics
Key performance indicators for student achievement and college readiness.
Academic Performance
Proficiency on state assessments by subject.
Math Proficiency
Percent proficient on state math tests.
English Proficiency
Percent proficient on state English and language art (reading) tests.
Science Proficiency
Percent proficient on state science tests.
View detailed state comparisons
Math Proficiency
ELA Proficiency
Science Proficiency
IL Average
College Preparedness & Advanced Coursework
Graduation, advanced coursework, and college‑level participation.
Graduation Rate
Percent graduating in four years.
Enrolled in AP Classes
Percent of students enrolled in at least one AP course.
AP Classes Taught
Number of AP courses offered.
Students in Dual Enrollment
Percent taking college courses during high school.
Students enrolled in IB Classes
Percent enrolled in International Baccalaureate classes.
View AP Enrollment by Class
AP Science
AP Computer Science
AP Math
IL Average
Neighborhood
Details on neighborhood safety, economics, and community
Crime Grade
Use as neighborhood context, not a rating of the school.
Overall Crime Grade
22.50 per 1,000 Residents
Violent Crime Grade
1.99 per 1,000 Residents
Property Crime Grade
12.82 per 1,000 Residents
What is Crime Grade?
Crime Grade uses a combination of official crime reports (FBI, state, and local law enforcement) and machine‐learning algorithms to fill in reporting gaps and correct errors, producing a single letter‐grade that reflects a neighborhood’s overall safety.
By integrating Crime Grade, parents see not only how well a school performs academically but also how safe the surrounding community is, giving a more complete picture of each school’s environment.
Economics & Housing
Median Household Income
IL Average: $93,298
Unemployment Rate
IL Average: 6.0%
Median Home value
IL Average: $287,130
Median Rent
IL Average: $1,386
Adults with HS Diploma or Higher
IL Average: 90.1%
Teachers & Staff
Key metrics on teacher and support staff capacity, qualifications, and retention.
Staffing Levels
Student to Teacher Ratio
IL Average: 14:1
Number of Teachers
Fulltime Equivalent Teachers
Average Teacher Salary
Average for all teachers in Grayslake Chsd 127
Student to Counselor Ratio
IL Average: 317:1
Number of Support Staff
View Breakdown Below
View the Support Staff Breakdown
Psychologists:
2
Nurses:
1
Social Workers:
3
Law Enforcement Officers:
1
Security Staff:
7
Staff Qualifications
Percent Certified Teachers
IL Average: 98%
Percent of Experienced Teachers
IL Average: 94%
Environment & Safety
Suspensions
In-School Suspensions – Days
Students removed from class but supervised on campus.
Out-of-School Suspensions – Days
Students sent out of school to another setting.
Total Days Missed
Total number of days missed due to suspensions.
Expulsions – Days
Expulsions With Services
Total expulsions where educational services continued.
Expulsions Without Services
Total expulsions where no educational services continued.
Expulsions with Zero-Tolerance
Total expulsions imposed under a zero‑tolerance rule.
View incidents of bullying by victim type
Gender-Based
3
Sexual Orientation Based
1
Race-Based
1
Disability-Based
0
Religion-Based
0
Resources & Finance
Per‑Student Expenditure
District-level per-student spending.
Instruction vs. Administration
Dollars spent on instruction for every $1 on administration.
Equity & Access
Student demographics and access indicators.
Race & Ethnicity
Percent of enrolled students by reported category.
White
Native American
Asian or Pacific Islander
Black
Latino
Multiracial
Native Hawaiian or Alaskan
Socioeconomic Status & Housing Vulnerability
Economically Disadvantaged
Students meeting the state definition.
Foster System
Students in foster care.
Homeless
Students in families experiencing homelessness.
Language & Mobility
English as a Second Language
Students for whom English is a second language.
Migratory
Students in migratory families.
Military-connected
Students in military families.
Special Needs & Gifted
Students with Disabilities
Gifted & Talented
High Schools Nearest to Grayslake Central High School
Explore nearby high schools and compare both actual and projected test scores.
- Actual Test Scores: 40%
- Projected Test Scores: 43%
- Distance: 1.9 mi
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- Projected Test Scores: 28%
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- Projected Test Scores: 40%
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- Projected Test Scores: 34%
- Distance: 5.5 mi
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- Projected Test Scores: 73%
- Distance: 6.0 mi
- Actual Test Scores: 25%
- Projected Test Scores: 29%
- Distance: 6.6 mi
- Actual Test Scores: 42%
- Projected Test Scores: 43%
- Distance: 6.6 mi
- Actual Test Scores: 29%
- Projected Test Scores: 35%
- Distance: 7.7 mi
- Actual Test Scores: 34%
- Projected Test Scores: 35%
- Distance: 8.9 mi
- Actual Test Scores: 64%
- Projected Test Scores: 66%
- Distance: 9.7 mi