Enrollment
1,671
Maryland · 2024-25 NCES data
High school (grades 9-12) · Rockville, MD
Col. Zadok Magruder High
Federal NCES profile for Col. Zadok Magruder High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 57/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 240048000808
👥 S:T ratio 39
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 52
📋 Attendance 25
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Col. Zadok Magruder High earns 57/100 on the Resource Investment Index, with class sizes near the Maryland median. It is also one of the largest schools in Maryland.
- #4 of 5
- high schools in Rockville · Resource Index
- 57
- Resource Index · Higher
- 15.3:1
- students per teacher
- 45.4%
- free-lunch eligible
Col. Zadok Magruder High has class sizes near the Maryland median. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Col. Zadok Magruder High ranks #4 of 5 high schools in Rockville, MD.
School address
District: Montgomery County Public Schools · Maryland
NCES ID 240048000808 Verify on NCES CCD record →
Teachers (FTE)
109.0
Federal CCD staff survey
Students per teacher
15.3:1
vs 14.5:1 Maryland avg
+6% vs state
Free-lunch eligible
45.4%
vs 49.0% Maryland avg
-7% vs state
Student-teacher ratio in context
How Col. Zadok Magruder High compares with Maryland and U.S. medians
What stands out at Col. Zadok Magruder High
Col. Zadok Magruder High is a large high school in Rockville, Maryland, enrolling 1,671 students.
Class loads run somewhat heavier than typical: 15.3:1 puts it in the larger third of Maryland schools by student-teacher ratio.
Its free-meal eligibility rate of 45.4% lands close to the Maryland typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Maryland, bigger than 96% of state schools at 1,671 students.
Its Resource Investment Index lands in the upper third of 1,382 scored Maryland schools.
Against 81 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #12.
Its student body is led by Hispanic or Latino (44%) and White (21%) (diversity index 71/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor coverage is strong, about 239 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 29.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Rockville's high schools, it stands alongside Richard Montgomery High (2,366 students): Col. Zadok Magruder High is smaller than that campus by headcount and runs leaner classes (15.3:1 vs 17.7:1).
Montgomery County Public Schools also operates Montgomery Blair High (3,266 students) and Walter Johnson High (3,016 students) alongside Col. Zadok Magruder High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Col. Zadok Magruder High compares
Col. Zadok Magruder High on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.3:1 | ▲ 6% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 45.4% | ▼ 7% | 49.0% | 51.7% |
| Enrollment | 1,671 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.3:1
Leaner classes than 44% of US schools, a middle-of-the-pack class size.
1,671
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
45.4%
free-lunch eligible
- 7% below the Maryland average of 49.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
15.3:1
students per teacher
- 6% above state mean
Top 61% in Maryland - lower ratio than 39% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
29.9%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$18,101
per pupil, district-wide
- below Maryland avg of $20,446
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors7.0 FTE
Per 239 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 43 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 2.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 44.0%
White 20.6%
African American 19.3%
Asian 11.7%
Two or More 4.3%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 44.0% of enrollment.
Student-body diversity index 71.1/100
Simpson diversity index - at 71.1, Col. Zadok Magruder High is more mixed than the Maryland school average of 52.3.
Programs
AP courses offered 20
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Montgomery County Public Schools, which includes Col. Zadok Magruder High.
$18,101
Per student
-11%
vs Maryland
Avg $20,446
+9%
vs U.S.
Avg $16,593
Revenue mix
Local 66.0%
State 23.7%
Federal 10.3%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Col. Zadok Magruder High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Montgomery Blair High | Larger | Similar economic need | Higher S:T ratio |
| Walter Johnson High | Larger | Lower economic need | Higher S:T ratio |
| Wheaton High | Larger | Higher economic need | Higher S:T ratio |
| Gaithersburg High | Larger | Higher economic need | Similar S:T ratio |
| Seneca Valley High | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Col. Zadok Magruder High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,266
- Students per teacher
- 17:1
- Resource Index
- 52/100
- Enrollment
- 3,016
- Students per teacher
- 19.1:1
- Resource Index
- 51/100
- Enrollment
- 2,794
- Students per teacher
- 17.8:1
- Resource Index
- 43/100
- Enrollment
- 2,441
- Students per teacher
- 14.4:1
- Resource Index
- 56/100
- Enrollment
- 2,409
- Students per teacher
- 15.6:1
- Resource Index
- 41/100
Similar high schools in Rockville
4 comparable high schools (grades 9-12) serving the same city.
Richard Montgomery High
Standard public school
2,366 students 17.7:1 students per teacher
Thomas S. Wootton High
Standard public school
1,870 students 18:1 students per teacher
Rockville High
Standard public school
1,550 students 16.1:1 students per teacher
Alternative Programs
Alternative education program
1 students
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Maryland, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,671 students)
Similar student-teacher ratio (~15.3:1)
Next steps
Verify locally before acting on Col. Zadok Magruder High's federal record.
- Compare Col. Zadok Magruder High against another school. Compare schools
- Montgomery County Public Schools's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Col. Zadok Magruder High
How many students attend Col. Zadok Magruder High?
Col. Zadok Magruder High has 1,671 students enrolled. It is a high school in Rockville, MD.
What is the student-teacher ratio at Col. Zadok Magruder High?
The student-teacher ratio at Col. Zadok Magruder High is 15.3:1, which is 6% higher than the Maryland average of 14.5:1 and 3% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Col. Zadok Magruder High?
45.4% of students at Col. Zadok Magruder High are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Col. Zadok Magruder High?
The largest demographic group at Col. Zadok Magruder High is Hispanic or Latino at 44.0% of enrollment, in Rockville, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 71.1/100.
What is the Resource Investment Index for Col. Zadok Magruder High?
Col. Zadok Magruder High has a Resource Investment Index of 57/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Col. Zadok Magruder High rank among high schools in Rockville?
By Resource Investment Index, Col. Zadok Magruder High ranks #4 of 5 high schools in Rockville, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Rockville on the city page.
Is Col. Zadok Magruder High a good school?
Col. Zadok Magruder High earns 57/100 on the Resource Investment Index, with class sizes near the Maryland median. It is also one of the largest schools in Maryland. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Montgomery County Public Schools?
Besides Col. Zadok Magruder High, Montgomery County Public Schools also operates Montgomery Blair High (3,266 students), Walter Johnson High (3,016 students), and Wheaton High (2,794 students). See the Montgomery County Public Schools district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.