Greenbrier Elementary School

21222 San Mar Rd
Boonsboro, MD 21713
(School attendance zone shown in map)
9/
10
Top 20%
Serving 250 students in grades Prekindergarten-5, Greenbrier Elementary School ranks in the top 20% of all schools in Maryland for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 40-44% (which is higher than the Maryland state average of 27%). The percentage of students achieving proficiency in reading/language arts is 65-69% (which is higher than the Maryland state average of 45%).
The student-teacher ratio of 16:1 is higher than the Maryland state level of 14:1.
Minority enrollment is 20% of the student body (majority Hispanic), which is lower than the Maryland state average of 68% (majority Black).

Quick Facts (2026)

  • Grades: Prekindergarten-5
  • Enrollment: 250 students
  • Student-Teacher Ratio: 16:1
  • Minority Enrollment: 20%
  • : Top 20% in MD
  • : 40-44% (Top 30%)
  • : 65-69% (Top 20%)
  • : 40-49% (Top 30%)
  • Source: National Center for Education Statistics (NCES), MD Dept. of Education

Top Rankings

Greenbrier Elementary School ranks among the top 20% of public schools in Maryland for:

Category
Attribute
Reading/Language Arts Proficiency

School Overview

Greenbrier Elementary School's student population of 250 students has grown by 13% over five school years.
The teacher population of 16 teachers has grown by 6% over five school years.
Grades Offered
Grades Prekindergarten-5
(Supplemental Virtual)
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Total Students
250 students
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Gender %
Total Classroom Teachers
16 teachers
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School Calendar

School Rankings

Greenbrier Elementary School ranks within the top 20% of all 1,338 schools in Maryland (based off of combined math and reading proficiency testing data).
The diversity score of Greenbrier Elementary School is 0.35, which is less than the diversity score at state average of 0.74. The school's diversity has stayed relatively flat over five school years.
This School
State Level (MD)
#237 out of 1338 schools
(Top 20%)
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40-44%
27%
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65-69%
45%
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40-49%
36%
No Summary generated because only 2 years of data available
Student-Teacher Ratio
16:1
14:1
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American Indian
n/a
n/a
Asian
4%
7%
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Hispanic
10%
23%
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Black
2%
33%
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White
80%
32%
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Hawaiian
n/a
n/a
Two or more races
4%
5%
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All Ethnic Groups
0.35
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Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
31%
44%
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Eligible for Reduced Lunch
8%
5%
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School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), MD Dept. of Education

Frequently Asked Questions

What is Greenbrier Elementary School's ranking?
Greenbrier Elementary School is ranked #237 out of 1,338 schools, which ranks it among the top 20% of public schools in Maryland.
What schools are Greenbrier Elementary School often compared to?
Greenbrier Elementary Schoolis often viewed alongside schools like Rockland Woods Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 27% MD state average), while 65-69% of students have achieved reading proficiency (compared to the 45% MD state average).
How many students attend Greenbrier Elementary School?
250 students attend Greenbrier Elementary School.
What is the racial composition of the student body?
80% of Greenbrier Elementary School students are White, 10% of students are Hispanic, 4% of students are Asian, 4% of students are Two or more races, and 2% of students are Black.
What is the student-teacher ratio of Greenbrier Elementary School?
Greenbrier Elementary School has a student ration of 16:1, which is higher than the Maryland state average of 14:1.
What grades does Greenbrier Elementary School offer ?
Greenbrier Elementary School offers enrollment in grades Prekindergarten-5 (Supplemental Virtual).
What school district is Greenbrier Elementary School part of?
Greenbrier Elementary School is part of Washington County Public Schools.

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Quick Facts (2026)

  • Grades: Prekindergarten-5
  • Enrollment: 250 students
  • Student-Teacher Ratio: 16:1
  • Minority Enrollment: 20%
  • : Top 20%
  • : 40-44% (Top 30%)
  • : 65-69% (Top 20%)
  • : 40-49% (Top 30%)
  • Source: National Center for Education Statistics (NCES), MD Dept. of Education

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