- Enrollment
- 3,535
- Students per teacher
- 17.1:1
- Resource Index
- 46/100
Other / mixed grade configuration · Arlington, TX
Duff El
Federal NCES profile for Duff El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataOther / mixed grade configurationNCES 480870000242
👥 S:T ratio 35
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Duff El earns 40/100 on the Resource Investment Index, with class sizes larger than 74% of Texas schools.
- #22 of 63
- schools in Arlington · Resource Index
- 40
- Resource Index · Typical
- 16.3:1
- large classes for Texas
- 41.8%
- free-lunch eligible
Duff El has class sizes larger than 74% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Duff El ranks #22 of 63 schools in Arlington, TX.
School address
District: Arlington Isd · Texas
NCES ID 480870000242 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-33 students YoY
Duff El shrank from 625 students in 2022-23 to 592 in 2023-24 (-5.3%).
Teacher FTE held 38.6 → 38.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-33 students YoY 480870000242 · Arlington, TX Other · MID · TRAD
618 enr · 16.3:1 · 41.8% lunch · RII 40
Nearest enrollment peer: Martin H S (3,535 students)
Duff El shrank from 625 students in 2022-23 to 592 in 2023-24 (-5.3%). Teacher FTE held 38.6 → 38.5 across the same CCD years. Read with this school → · District book → · Texas schools → · Find another →
Duff El in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Martin H S
Martin H S
3,535 students
- Sam Houston H
Sam Houston H S
3,208 students
- Arlington H S
Arlington H S
2,580 students
- Lamar H S
Lamar H S
2,457 students
- Bowie H S
Bowie H S
2,140 students
- This school 618
Duff El
618 students
What this shows Duff El reports 618 students on the CCD universe file.
How Duff El compares
Duff El is a shrinking campus on CCD: ratios and free-lunch share vs Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.3:1 | ▲ 11% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 41.8% | ▼ 32% | 61.9% | 51.7% |
| Enrollment | 618 | top 35% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
618
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
41.8%
free-lunch eligible
- 32% 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
16.3:1
students per teacher
- 11% above state mean
Top 74% in Texas - lower ratio than 26% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
17.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$11,746
per pupil, district-wide
- below Texas avg of $14,348
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 618 students, the combined health-and-guidance staffing load for this school.
Discipline context
15
in-school suspensions + 4 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 3.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 51.6%
Hispanic or Latino 31.6%
African American 9.9%
Two or More 3.6%
Asian 2.9%
American Indian / Alaska Native 0.5%
Largest group: White at 51.6% of enrollment.
Student-body diversity index 62.2/100
Simpson diversity index - at 62.2, Duff El is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
District finance for Arlington Isd reports $11,746 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Duff El Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Martin H S | Larger | Similar economic need | Similar S:T ratio |
| Sam Houston H S | Larger | Higher economic need | Similar S:T ratio |
| Arlington H S | Larger | Higher economic need | Similar S:T ratio |
| Lamar H S | Larger | Higher economic need | Similar S:T ratio |
| Bowie H S | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Duff El's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- 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
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~618 students)
Similar student-teacher ratio (~16.3:1)
Frequently asked questions about Duff El
How many students attend Duff El?
Duff El has 618 students enrolled. It is a public school in Arlington, TX. CCD year-over-year: 625 (2022-23) → 592 (2023-24), down 33.
What is the student-teacher ratio at Duff El?
The student-teacher ratio at Duff El is 16.3:1, which is 11% higher than the Texas average of 14.7:1 and 4% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Duff El?
41.8% of students at Duff El are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Duff El?
The largest demographic group at Duff El is White at 51.6% of enrollment, in Arlington, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.2/100.
What is the Resource Investment Index for Duff El?
Duff El has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Duff El rank among schools in Arlington?
By Resource Investment Index, Duff El ranks #22 of 63 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 schools in Arlington on the city page.
What other schools are in Arlington Isd?
Besides Duff El, 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.