Enrollment
568
Texas · 2024-25 NCES data
Other / mixed grade configuration · San Antonio, TX
Mary Lou Hartman
Federal NCES profile for Mary Lou Hartman, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataOther / mixed grade configurationNCES 482499009452
👥 S:T ratio 54
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 11
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mary Lou Hartman earns 34/100 on the Resource Investment Index, with class sizes smaller than 80% of Texas schools.
- #217 of 327
- schools in San Antonio · Resource Index
- 34
- Resource Index · Typical
- 11.6:1
- small classes for Texas
- 62.0%
- free-lunch eligible
Mary Lou Hartman has class sizes smaller than 80% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Mary Lou Hartman ranks #217 of 327 schools in San Antonio, TX.
School address
Teachers (FTE)
49.0
Federal CCD staff survey
Students per teacher
11.6:1
vs 14.7:1 Texas avg
-21% vs state
Free-lunch eligible
62.0%
vs 61.9% Texas avg
+0% vs state
Student-teacher ratio in context
How Mary Lou Hartman compares with Texas and U.S. medians
What stands out at Mary Lou Hartman
Mary Lou Hartman is a higher-need, mid-sized combined-grade school in San Antonio, Texas, enrolling 568 students.
Class sizes run a bit leaner than typical: 11.6:1 puts it in the smaller third of Texas schools by student-teacher ratio.
Its free-meal eligibility rate of 62.0% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
With 568 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index lands in the lower third of 8,960 scored Texas schools.
Among 1,630 similarly sized, similarly resourced-need Texas schools statewide, it ranks #1,387, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (76%) and African American (14%) (diversity index 40/100).
Counselor access is stretched at roughly 617 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 35.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Judson Isd spends $10,949 per pupil, 20% below the Texas average, a leaner-resourced district than most.
Its district draws 19.8% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Judson Isd also operates Judson H S (2,498 students) and Karen Wagner H S (2,423 students) alongside Mary Lou Hartman.
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 Mary Lou Hartman compares
Mary Lou Hartman on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.6:1 | ▼ 21% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 62.0% | ▲ 0% | 61.9% | 51.7% |
| Enrollment | 568 | top 41% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.6:1
Leaner classes than 79% of US schools, among the more generously staffed nationally.
568
Bigger than 70% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
62.0%
free-lunch eligible
- 0% above the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
11.6:1
students per teacher
- 21% below state mean
Top 20% in Texas - lower ratio than 80% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
35.6%
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
$10,949
per pupil, district-wide
- below Texas avg of $13,644
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.9 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
21
in-school suspensions + 3 out-of-school
Suspension rate: 3.7 per 100 students. Combined in-school and out-of-school rate: 4.2 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 76.2%
African American 14.4%
White 6.0%
Asian 1.6%
Two or More 1.2%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 76.2% of enrollment.
Student-body diversity index 39.5/100
Simpson diversity index - at 39.5, Mary Lou Hartman is less mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Judson Isd, which includes Mary Lou Hartman.
$10,949
Per student
-20%
vs Texas
Avg $13,644
-34%
vs U.S.
Avg $16,593
Revenue mix
Local 46.4%
State 33.9%
Federal 19.8%
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 Mary Lou Hartman Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Judson H S | Larger | Similar economic need | Higher S:T ratio |
| Karen Wagner H S | Larger | Higher economic need | Higher S:T ratio |
| Veterans Memorial H S | Larger | Lower economic need | Higher S:T ratio |
| Judson Middle | Larger | Similar economic need | Higher S:T ratio |
| Kitty Hawk Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Mary Lou Hartman's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,498
- Students per teacher
- 14.3:1
- Resource Index
- 56/100
- Enrollment
- 2,423
- Students per teacher
- 14.9:1
- Resource Index
- 52/100
- Enrollment
- 1,579
- Students per teacher
- 14.2:1
- Resource Index
- 42/100
- Enrollment
- 1,189
- Students per teacher
- 15.6:1
- Resource Index
- 36/100
- Enrollment
- 1,062
- Students per teacher
- 13.3:1
- Resource Index
- 41/100
Similar other schools statewide
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.
Similar enrollment (~568 students)
Similar student-teacher ratio (~11.6:1)
Next steps
Verify locally before acting on Mary Lou Hartman's federal record.
- Compare Mary Lou Hartman against another school. Compare schools
- Judson Isd'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 Mary Lou Hartman
How many students attend Mary Lou Hartman?
Mary Lou Hartman has 568 students enrolled. It is a public school in San Antonio, TX.
What is the student-teacher ratio at Mary Lou Hartman?
The student-teacher ratio at Mary Lou Hartman is 11.6:1, which is 21% lower than the Texas average of 14.7:1 and 26% 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 Mary Lou Hartman?
62.0% of students at Mary Lou Hartman are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Mary Lou Hartman?
The largest demographic group at Mary Lou Hartman is Hispanic or Latino at 76.2% of enrollment, in San Antonio, TX.
What is the Resource Investment Index for Mary Lou Hartman?
Mary Lou Hartman has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mary Lou Hartman rank among schools in San Antonio?
By Resource Investment Index, Mary Lou Hartman ranks #217 of 327 schools in San Antonio, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in San Antonio on the city page.
Is Mary Lou Hartman a good school?
Mary Lou Hartman earns 34/100 on the Resource Investment Index, with class sizes smaller than 80% of Texas schools. 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 Judson Isd?
Besides Mary Lou Hartman, Judson Isd also operates Judson H S (2,498 students), Karen Wagner H S (2,423 students), and Veterans Memorial H S (1,579 students). See the Judson Isd 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.