Enrollment
2,441
Maryland · 2024-25 NCES data
High school (grades 9-12) · Gaithersburg, MD
Gaithersburg High
Federal NCES profile for Gaithersburg High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 67/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 240048000838
👥 S:T ratio 42
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 56
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Gaithersburg High earns 67/100 on the Resource Investment Index, with class sizes near the Maryland median. It is also one of the largest schools in Maryland.
- #1 of 3
- high schools in Gaithersburg · Resource Index
- 67
- Resource Index · Higher
- 14.4:1
- students per teacher
- 58.7%
- free-lunch eligible
Gaithersburg High has class sizes near the Maryland median. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Gaithersburg High ranks #1 of 3 high schools in Gaithersburg, MD.
School address
District: Montgomery County Public Schools · Maryland
NCES ID 240048000838 Verify on NCES CCD record →
Teachers (FTE)
170.0
Federal CCD staff survey
Students per teacher
14.4:1
vs 14.5:1 Maryland avg
-1% vs state
Free-lunch eligible
58.7%
vs 49.0% Maryland avg
+20% vs state
Student-teacher ratio in context
How Gaithersburg High compares with Maryland and U.S. medians
What stands out at Gaithersburg High
Gaithersburg High is a higher-need, large high school in Gaithersburg, Maryland, enrolling 2,441 students.
At 14.4:1, its student-teacher ratio sits close to the Maryland median, within a few percentage points of the 14.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 58.7% of students eligible for free meals.
By headcount it is one of the larger campuses in Maryland, bigger than 99% of state schools at 2,441 students.
Its Resource Investment Index outscores 93% of the 1,382 Maryland schools with a score on record, a top-tier result on this measure.
Among 39 similarly sized, similarly resourced-need Maryland schools statewide, it ranks #1, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (63%) and African American (20%) (diversity index 56/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor coverage is strong, about 222 students per counselor, inside the American School Counselor Association's recommended 250:1.
The federal civil-rights collection also records 8 expulsions at this campus for 2021-22.
Among Gaithersburg's high schools, it stands alongside Quince Orchard High (2,100 students): Gaithersburg High is larger than that campus by headcount and runs leaner classes (14.4:1 vs 16.2:1).
Montgomery County Public Schools also operates Montgomery Blair High (3,266 students) and Walter Johnson High (3,016 students) alongside Gaithersburg 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 Gaithersburg High compares
Gaithersburg 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 | 14.4:1 | ▼ 1% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 58.7% | ▲ 20% | 49.0% | 51.7% |
| Enrollment | 2,441 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.4:1
Leaner classes than 53% of US schools, a middle-of-the-pack class size.
2,441
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
58.7%
free-lunch eligible
- 20% above the Maryland average of 49.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
14.4:1
students per teacher
- 1% below state mean
Top 49% in Maryland - lower ratio than 51% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
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
Counselors11.0 FTE
Per 222 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 97 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 4.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 8 expulsions.
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 62.6%
African American 19.9%
White 8.4%
Asian 5.9%
Two or More 2.9%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 62.6% of enrollment.
Student-body diversity index 55.7/100
Simpson diversity index - at 55.7, Gaithersburg 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 Gaithersburg 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 Gaithersburg High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Montgomery Blair High | Larger | Lower economic need | Higher S:T ratio |
| Walter Johnson High | Similar size | Lower economic need | Higher S:T ratio |
| Wheaton High | Similar size | Similar economic need | Higher S:T ratio |
| Seneca Valley High | Similar size | Similar economic need | Similar S:T ratio |
| Bethesda-Chevy Chase High | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Gaithersburg 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
- 2,409
- Students per teacher
- 15.6:1
- Resource Index
- 41/100
- Enrollment
- 2,377
- Students per teacher
- 18.3:1
- Resource Index
- 50/100
Similar high schools in Gaithersburg
2 comparable high schools (grades 9-12) serving the same city.
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 (~2,441 students)
Similar student-teacher ratio (~14.4:1)
Next steps
Verify locally before acting on Gaithersburg High's federal record.
- Compare Gaithersburg 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 Gaithersburg High
How many students attend Gaithersburg High?
Gaithersburg High has 2,441 students enrolled. It is a high school in Gaithersburg, MD.
What is the student-teacher ratio at Gaithersburg High?
The student-teacher ratio at Gaithersburg High is 14.4:1, which is 1% lower than the Maryland average of 14.5:1 and 8% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Gaithersburg High?
58.7% of students at Gaithersburg High are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Gaithersburg High?
The largest demographic group at Gaithersburg High is Hispanic or Latino at 62.6% of enrollment, in Gaithersburg, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.7/100.
What is the Resource Investment Index for Gaithersburg High?
Gaithersburg High has a Resource Investment Index of 67/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Gaithersburg High rank among high schools in Gaithersburg?
By Resource Investment Index, Gaithersburg High ranks #1 of 3 high schools in Gaithersburg, 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 Gaithersburg on the city page.
Is Gaithersburg High a good school?
Gaithersburg High earns 67/100 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 Gaithersburg 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.