Serving 451 students in grades Prekindergarten-5, Greenbrook Elementary School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 15-19% (which is lower than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 15% (which is lower than the Illinois state average of 30%).
The student-teacher ratio of 10:1 is lower than the Illinois state level of 13:1.
Minority enrollment is 86% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic and Black).
Quick Facts (2025)
- Grades: Prekindergarten-5
- Enrollment: 451 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 86%
- Overall Testing Rank: Bottom 50% in IL
- Math Proficiency: 15-19% (Btm 50%)
- Reading Proficiency: 15% (Btm 50%)
- Science Proficiency: 20-24% (Btm 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Greenbrook Elementary School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Diversity
Student Attention
School Overview
Greenbrook Elementary School's student population of 451 students has declined by 17% over five school years.
The teacher population of 45 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Prekindergarten-5
Total Students
451 students
Gender %
Total Classroom Teachers
45 teachers
School Calendar
School Motto
Ignite the power and potential of each student
School Mascot
Gators
School Rankings
Greenbrook Elementary School ranks within the bottom 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Greenbrook Elementary School is 0.68, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#2394 out of 3542 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15-19%
27%
Reading/Language Arts Test Scores (% Proficient)
15%
30%
Science Test Scores (% Proficient)
20-24%
50%
Student-Teacher Ratio
10:1
13:1
American Indian
n/a
1%
Asian
8%
6%
Hispanic
49%
28%
Black
24%
16%
White
14%
45%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Eligible for Free Lunch
55%
43%
Eligible for Reduced Lunch (19-20)
9%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Gators
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Greenbrook Elementary School's ranking?
Greenbrook Elementary School is ranked #2394 out of 3,542 schools, which ranks it among the bottom 50% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
15-19% of students have achieved math proficiency (compared to the 27% IL state average), while 15% of students have achieved reading proficiency (compared to the 30% IL state average).
How many students attend Greenbrook Elementary School?
451 students attend Greenbrook Elementary School.
What is the racial composition of the student body?
49% of Greenbrook Elementary School students are Hispanic, 24% of students are Black, 14% of students are White, 8% of students are Asian, and 5% of students are Two or more races.
What is the student-teacher ratio of Greenbrook Elementary School?
Greenbrook Elementary School has a student ration of 10:1, which is lower than the Illinois state average of 13:1.
What grades does Greenbrook Elementary School offer ?
Greenbrook Elementary School offers enrollment in grades Prekindergarten-5
What school district is Greenbrook Elementary School part of?
Greenbrook Elementary School is part of Keeneyville SD 20 School District.
School Reviews
Review Greenbrook Elementary School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles

Why Single-Sex Public Schools are Growing in Popularity
This article examines the growing trend of single-sex public schools in the United States. It explores the potential benefits, research findings, and controversies surrounding gender-specific education, as well as the factors driving its increasing popularity among parents and educators.

When Teachers Cheat: The Standardized Test Controversies
Teachers across the country are being accused of cheating on standardized tests, using erasers to conveniently change their students’ answers. However, are these teachers driven to cheat because the funding system is flawed?

When Field Trips Turn Deadly: Who is Responsible?
Recent deaths during field trips have parents and school officials questioning the safety of these excursions. Learn about these tragedies and what parameters should be in place to ensure a safe field trip.