Col. Zadok Magruder High School is a secondary public school located in Rockville, Maryland, United States. Magruder is named for Colonel Zadok Magruder, a Revolutionary War patriot and farmer. He was colonel in command of part of the Maryland militia and helped establish Montgomery County's government in 1776.
Serving 1,671 students in grades 9-12, Col. Zadok Magruder High School ranks in the top 30% 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 41% (which is higher than the Maryland state average of 27%). The percentage of students achieving proficiency in reading/language arts is 64% (which is higher than the Maryland state average of 45%).
The student-teacher ratio of 15:1 is higher than the Maryland state level of 14:1.
Minority enrollment is 79% of the student body (majority Hispanic), which is higher than the Maryland state average of 69% (majority Black and Hispanic).
Quick Facts (2026)
- School Type: Magnet School
- Grades: 9-12
- Enrollment: 1,671 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 79%
- Graduation Rate: 94% (Top 30% in MD)
- Overall Testing Rank: Top 30%
- Math Proficiency: 41% (Top 30%)
- Reading Proficiency: 64% (Top 20%)
- Science Proficiency: 61% (Top 10%)
- Source: National Center for Education Statistics (NCES), MD Dept. of Education
Top Rankings
Col. Zadok Magruder High School ranks among the top 20% of public schools in Maryland for:
Category
Attribute
Most improved public schools
Reading/Language Arts Proficiency
Science Proficiency
Diversity
School Overview
Col. Zadok Magruder High School's student population of 1,671 students has stayed relatively flat over five school years.
The teacher population of 109 teachers has grown by 7% over five school years.
School Type
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,671 students
Total Classroom Teachers
109 teachers
Year Founded
1970
Colors
Blue, Grey
School Calendar
School Rankings
Col. Zadok Magruder High School ranks within the top 30% of all 1,338 schools in Maryland (based off of combined math and reading proficiency testing data).
The diversity score of Col. Zadok Magruder High School is 0.72, 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.
Overall Testing Rank
#286 out of 1338 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
41%
27%
Reading/Language Arts Test Scores (% Proficient)
64%
45%
Science Test Scores (% Proficient)
61%
36%
Student-Teacher Ratio
15:1
14:1
American Indian
n/a
n/a
Asian
12%
7%
Hispanic
44%
24%
Black
19%
32%
White
21%
31%
Hawaiian
n/a
n/a
Two or more races
4%
6%
All Ethnic Groups
Graduation Rate
94%
86%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
40%
46%
Eligible for Reduced Lunch
8%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), MD Dept. of Education
Frequently Asked Questions
What is Col. Zadok Magruder High School's ranking?
Col. Zadok Magruder High School is ranked #286 out of 1,338 schools, which ranks it among the top 30% of public schools in Maryland.
What percent of students have achieved state testing proficiency in math and reading?
41% of students have achieved math proficiency (compared to the 27% MD state average), while 64% of students have achieved reading proficiency (compared to the 45% MD state average).
What is the graduation rate of Col. Zadok Magruder High School?
The graduation rate of Col. Zadok Magruder High School is 94%, which is higher than the Maryland state average of 86%.
How many students attend Col. Zadok Magruder High School?
1,671 students attend Col. Zadok Magruder High School.
What is the racial composition of the student body?
44% of Col. Zadok Magruder High School students are Hispanic, 21% of students are White, 19% of students are Black, 12% of students are Asian, and 4% of students are Two or more races.
What is the student-teacher ratio of Col. Zadok Magruder High School?
Col. Zadok Magruder High School has a student ration of 15:1, which is higher than the Maryland state average of 14:1.
What grades does Col. Zadok Magruder High School offer ?
Col. Zadok Magruder High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Col. Zadok Magruder High School part of?
Col. Zadok Magruder High School is part of Montgomery County School District.
School Reviews
5 10/10/2025
The teachers are very nice and there is great diversity
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