Enrollment
1,554
Texas · 2024-25 NCES data
High school (grades 9-12) · Arlington, TX
Seguin H S
Federal NCES profile for Seguin H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 57/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 480870009374
👥 S:T ratio 46
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 48
📋 Attendance 18
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Seguin H S earns 57/100 on the Resource Investment Index, with class sizes near the Texas median. It is also one of the largest schools in Texas.
- #8 of 13
- high schools in Arlington · Resource Index
- 57
- Resource Index · Higher
- 13.4:1
- students per teacher
- 60.8%
- free-lunch eligible
Seguin H S has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Seguin H S ranks #8 of 13 high schools in Arlington, TX.
School address
District: Arlington Isd · Texas
NCES ID 480870009374 Verify on NCES CCD record →
Teachers (FTE)
116.0
Federal CCD staff survey
Students per teacher
13.4:1
vs 14.7:1 Texas avg
-9% vs state
Free-lunch eligible
60.8%
vs 61.9% Texas avg
-2% vs state
Student-teacher ratio in context
How Seguin H S compares with Texas and U.S. medians
What stands out at Seguin H S
Seguin H S is a higher-need, large high school in Arlington, Texas, enrolling 1,554 students.
Class sizes run a bit leaner than typical: 13.4:1 puts it in the smaller third of Texas schools by student-teacher ratio.
Its free-meal eligibility rate of 60.8% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Texas, bigger than 95% of state schools at 1,554 students.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 321 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #49.
Its student body is led by African American (38%) and Hispanic or Latino (35%), more mixed than most schools in the state (diversity index 71/100).
On the academic-pipeline side it reports 22 Advanced Placement courses.
Counselor coverage runs a bit thin, about 259 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 32.8% 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 4 expulsions at this campus for 2021-22.
Arlington Isd also operates Martin H S (3,535 students) and Sam Houston H S (3,208 students) alongside Seguin 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
How Seguin H S compares
Seguin 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 | 13.4:1 | ▼ 9% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 60.8% | ▼ 2% | 61.9% | 51.7% |
| Enrollment | 1,554 | top 5% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.4:1
Leaner classes than 63% of US schools, a middle-of-the-pack class size.
1,554
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
60.8%
free-lunch eligible
- 2% below the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
13.4:1
students per teacher
- 9% below state mean
Top 39% in Texas - lower ratio than 61% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
32.8%
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
$11,489
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
Counselors6.0 FTE
Per 259 students, the combined health-and-guidance staffing load for this school.
Discipline context
152
in-school suspensions + 98 out-of-school
Suspension rate: 9.8 per 100 students. Combined in-school and out-of-school rate: 16.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 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
African American 37.7%
Hispanic or Latino 35.3%
Asian 12.0%
White 10.8%
Two or More 3.7%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: African American at 37.7% of enrollment.
Student-body diversity index 70.6/100
Simpson diversity index - at 70.6, Seguin H S is more mixed than the Texas school average of 44.7.
Programs
AP courses offered 22
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Arlington Isd, which includes Seguin H S.
$11,489
Per student
-16%
vs Texas
Avg $13,644
-31%
vs U.S.
Avg $16,593
Revenue mix
Local 57.0%
State 23.9%
Federal 19.1%
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 Seguin H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Martin H S | Larger | Lower economic need | Higher S:T ratio |
| Sam Houston H S | Larger | Higher economic need | Higher S:T ratio |
| Arlington H S | Larger | Similar economic need | Higher S:T ratio |
| Lamar H S | Larger | Similar economic need | Higher S:T ratio |
| Bowie H S | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Seguin H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,535
- Students per teacher
- 17.1:1
- Resource Index
- 46/100
- Enrollment
- 3,208
- Students per teacher
- 15.5:1
- Resource Index
- 52/100
- Enrollment
- 2,580
- Students per teacher
- 15.9:1
- Resource Index
- 50/100
- Enrollment
- 2,457
- Students per teacher
- 14.9:1
- Resource Index
- 54/100
- Enrollment
- 2,140
- Students per teacher
- 13.7:1
- Resource Index
- 42/100
Similar high 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 (~1,554 students)
Similar student-teacher ratio (~13.4:1)
Next steps
Verify locally before acting on Seguin H S's federal record.
- Compare Seguin H S against another school. Compare schools
- Arlington 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 Seguin H S
How many students attend Seguin H S?
Seguin H S has 1,554 students enrolled. It is a high school in Arlington, TX.
What is the student-teacher ratio at Seguin H S?
The student-teacher ratio at Seguin H S is 13.4:1, which is 9% lower than the Texas average of 14.7:1 and 15% 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 Seguin H S?
60.8% of students at Seguin H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Seguin H S?
The largest demographic group at Seguin H S is African American at 37.7% of enrollment, in Arlington, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.6/100.
What is the Resource Investment Index for Seguin H S?
Seguin 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).
How does Seguin H S rank among high schools in Arlington?
By Resource Investment Index, Seguin 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.
Is Seguin H S a good school?
Seguin H S earns 57/100 on the Resource Investment Index, with class sizes near the Texas median. 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.
What other schools are in Arlington Isd?
Besides Seguin H S, Arlington Isd also operates Martin H S (3,535 students), Sam Houston H S (3,208 students), and Arlington H S (2,580 students). See the Arlington 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.