Enrollment
3,535
Texas · 2024-25 NCES data
High school (grades 9-12) · Arlington, TX
Federal NCES profile for Martin H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 57/100.
The verdict
Martin H S earns 57/100 on the Resource Investment Index, with class sizes larger than 81% of Texas schools. It is also one of the largest schools in Texas.
Martin H S has class sizes larger than 81% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Martin H S ranks #8 of 13 high schools in Arlington, TX.
NCES ID 480870005643 Verify on NCES CCD record →
Enrollment
3,535
Texas · 2024-25 NCES data
Teachers (FTE)
207.0
Federal CCD staff survey
Students per teacher
17.1:1
vs 14.7:1 Texas avg
+16% vs state
Free-lunch eligible
36.1%
vs 61.9% Texas avg
-42% vs state
How Martin H S compares with Texas and U.S. medians
Slightly above state median
17.1:1 - 2.4 above the Texas state median of 14.7:1, indicating larger average class loads than typical schools in the state.
Martin H S is a large high school in Arlington, Texas, enrolling 3,535 students.
Class loads run somewhat heavier than typical: 17.1:1 puts it in the larger third of Texas schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 36.1% of students eligible for free meals.
By headcount it is one of the larger campuses in Texas, bigger than 99% of state schools at 3,535 students.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 115 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #22.
Its student body is led by White (38%) and Hispanic or Latino (28%), more mixed than most schools in the state (diversity index 73/100).
On the academic-pipeline side it reports 28 Advanced Placement courses.
Counselor coverage runs a bit thin, about 273 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 25.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Arlington Isd also operates Sam Houston H S (3,208 students) and Arlington H S (2,580 students) alongside Martin H S.
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
Martin H S on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.1:1 | ▲ 16% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 36.1% | ▼ 42% | 61.9% | 51.7% |
| Enrollment | 3,535 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 38.0% of enrollment.
Simpson diversity index - at 72.9, Martin H S is more mixed than the Texas school average of 44.7.
District-wide per-pupil expenditure for Arlington Isd, which includes Martin H S.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sam Houston H S | Similar size | Higher economic need | Lower S:T ratio |
| Arlington H S | Smaller | Higher economic need | Similar S:T ratio |
| Lamar H S | Smaller | Higher economic need | Lower S:T ratio |
| Bowie H S | Smaller | Higher economic need | Lower S:T ratio |
| Seguin H S | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Martin H S's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Texas, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Martin H S's federal record.
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.
Martin H S has 3,535 students enrolled. It is a high school in Arlington, TX.
The student-teacher ratio at Martin H S is 17.1:1, which is 16% higher than the Texas average of 14.7:1 and 9% higher than the national average of 15.7:1.
36.1% of students at Martin H S are eligible for free lunch, compared to the Texas average of 61.9%.
The largest demographic group at Martin H S is White at 38.0% of enrollment, in Arlington, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.9/100.
Martin H S 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).
By Resource Investment Index, Martin H S ranks #8 of 13 high schools in Arlington, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Arlington on the city page.
Martin H S earns 57/100 on the Resource Investment Index, with class sizes larger than 81% of Texas schools. It is also one of the largest schools in Texas. 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.
Besides Martin H S, Arlington Isd also operates Sam Houston H S (3,208 students), Arlington H S (2,580 students), and Lamar H S (2,457 students). See the Arlington Isd district page for the complete list.
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.
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PlainSchools, “Martin H S, Arlington TX.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/martin-h-s-tx
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