Enrollment
271
Texas · 2024-25 NCES data
Other / mixed grade configuration · Houston, TX
Federal NCES profile for Martinez C El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
The verdict
Martinez C El earns 39/100 on the Resource Investment Index, with class sizes near the Texas median.
Martinez C El has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Martinez C El ranks #236 of 435 schools in Houston, TX.
Enrollment
271
Texas · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
13.6:1
vs 14.7:1 Texas avg
-7% vs state
Free-lunch eligible
98.6%
vs 61.9% Texas avg
+59% vs state
How Martinez C El compares with Texas and U.S. medians
At or below state median
13.6:1 - 1.1 below the Texas state median of 14.7:1, indicating smaller average class loads than typical schools in the state.
Martinez C El is a high-poverty, mid-sized combined-grade school in Houston, Texas, enrolling 271 students.
At 13.6:1, its student-teacher ratio sits close to the Texas median, within a few percentage points of the 14.7:1 state norm, neither notably crowded nor notably small.
Economic need is high: 98.6% of students qualify for free meals, 59% above the Texas average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 271 puts it in the smaller third of Texas schools by headcount.
Its Resource Investment Index lands in the lower third of 8,960 scored Texas schools.
Against 490 statewide peers matched on enrollment and economic need, it ranks mid-pack at #307.
Its student body is led by Hispanic or Latino (54%) and African American (46%) (diversity index 50/100).
Chronic absenteeism is elevated: 46.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 23.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Houston Isd also operates Texas Connections Academy at Houston (8,641 students) and Bellaire H S (3,216 students) alongside Martinez C El.
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
Martinez C El on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.6:1 | ▼ 7% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 98.6% | ▲ 59% | 61.9% | 51.7% |
| Enrollment | 271 | top 78% | - | - |
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: Hispanic or Latino at 53.5% of enrollment.
Simpson diversity index - at 50.4, Martinez C El is more mixed than the Texas school average of 44.7.
District-wide per-pupil expenditure for Houston Isd, which includes Martinez C El.
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 |
|---|---|---|---|
| Texas Connections Academy at Houston | Larger | No free-lunch data | Higher S:T ratio |
| Bellaire H S | Larger | Lower economic need | Higher S:T ratio |
| Lamar H S | Larger | Lower economic need | Higher S:T ratio |
| Westside H S | Larger | Lower economic need | Higher S:T ratio |
| Heights H S | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Martinez C El'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 Martinez C El'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.
Martinez C El has 271 students enrolled. It is a public school in Houston, TX.
The student-teacher ratio at Martinez C El is 13.6:1, which is 7% lower than the Texas average of 14.7:1 and 13% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
98.6% of students at Martinez C El are eligible for free lunch, compared to the Texas average of 61.9%.
The largest demographic group at Martinez C El is Hispanic or Latino at 53.5% of enrollment, in Houston, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.4/100.
Martinez C El has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Martinez C El ranks #236 of 435 schools in Houston, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Houston on the city page.
Martinez C El earns 39/100 on the Resource Investment Index, with class sizes near the Texas median. 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 Martinez C El, Houston Isd also operates Texas Connections Academy at Houston (8,641 students), Bellaire H S (3,216 students), and Lamar H S (2,968 students). See the Houston 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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Last updated:
PlainSchools, “Martinez C El, Houston 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/martinez-c-el-tx
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