Enrollment
1,914
Pennsylvania · 2024-25 NCES data
High school (grades 9-12) · Allentown, PA
Louis E Dieruff Hs
Federal NCES profile for Louis E Dieruff Hs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 420228002795
👥 S:T ratio 28
📚 AP courses 40
🌟 Gifted program 70
🎓 Counselors 45
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Louis E Dieruff Hs earns 46/100 on the Resource Investment Index, with class sizes larger than 95% of Pennsylvania schools. It is also one of the largest schools in Pennsylvania.
- #3 of 5
- high schools in Allentown · Resource Index
- 46
- Resource Index · Typical
- 18.1:1
- large classes for Pennsylvania
- 88.9%
- free-lunch eligible
Louis E Dieruff Hs has class sizes larger than 95% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Louis E Dieruff Hs ranks #3 of 5 high schools in Allentown, PA.
School address
District: Allentown City Sd · Pennsylvania
NCES ID 420228002795 Verify on NCES CCD record →
Teachers (FTE)
106.0
Federal CCD staff survey
Students per teacher
18.1:1
vs 13.6:1 Pennsylvania avg
+33% vs state
Free-lunch eligible
88.9%
vs 58.1% Pennsylvania avg
+53% vs state
Student-teacher ratio in context
How Louis E Dieruff Hs compares with Pennsylvania and U.S. medians
What stands out at Louis E Dieruff Hs
Louis E Dieruff Hs is a high-poverty, large high school in Allentown, Pennsylvania, enrolling 1,914 students.
Class loads run heavy: 18.1:1 is larger than about 95% of Pennsylvania schools and 33% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 88.9% of students eligible for free meals.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 98% of state schools at 1,914 students.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Among 52 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #6, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (74%) and African American (11%) (diversity index 43/100).
On the academic-pipeline side it reports 8 Advanced Placement courses.
Counselor coverage runs a bit thin, about 273 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Its district draws 18.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 473 in- and out-of-school suspensions were reported for 1,914 students in the 2021-22 Civil Rights Data Collection.
Among Allentown's high schools, it stands alongside Parkland Hs (3,279 students): Louis E Dieruff Hs is smaller than that campus by headcount and runs heavier classes (18.1:1 vs 15.2:1).
Allentown City Sd also operates William Allen Hs (3,074 students) and South Mountain Ms (972 students) alongside Louis E Dieruff Hs.
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 Louis E Dieruff Hs compares
Louis E Dieruff Hs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.1:1 | ▲ 33% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 88.9% | ▲ 53% | 58.1% | 51.7% |
| Enrollment | 1,914 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.1:1
Leaner classes than 24% of US schools, heavier class loads than most.
1,914
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
88.9%
free-lunch eligible
- 53% above the Pennsylvania average of 58.1%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.1:1
students per teacher
- 33% above state mean
Top 95% in Pennsylvania - lower ratio than 5% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$15,572
per pupil, district-wide
- below Pennsylvania avg of $17,970
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors7.0 FTE
Per 273 students, the combined health-and-guidance staffing load for this school.
Discipline context
308
in-school suspensions + 165 out-of-school
Suspension rate: 16.1 per 100 students. Combined in-school and out-of-school rate: 24.7 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 73.9%
African American 11.3%
White 9.2%
Two or More 4.6%
Asian 0.9%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 73.9% of enrollment.
Student-body diversity index 43.0/100
Simpson diversity index - at 43.0, Louis E Dieruff Hs is more mixed than the Pennsylvania school average of 37.3.
Programs
AP courses offered 8
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Allentown City Sd, which includes Louis E Dieruff Hs.
$15,572
Per student
-13%
vs Pennsylvania
Avg $17,970
-6%
vs U.S.
Avg $16,593
Revenue mix
Local 29.0%
State 52.7%
Federal 18.3%
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 Louis E Dieruff Hs Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| William Allen Hs | Larger | Similar economic need | Higher S:T ratio |
| South Mountain Ms | Smaller | Higher economic need | Lower S:T ratio |
| Francis D Raub Ms | Smaller | Higher economic need | Lower S:T ratio |
| Brigadier General Anna Mae Hays El Sch | Smaller | Higher economic need | Lower S:T ratio |
| Trexler Ms | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Louis E Dieruff Hs's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,074
- Students per teacher
- 21.8:1
- Resource Index
- 38/100
- Enrollment
- 972
- Students per teacher
- 13.7:1
- Resource Index
- 38/100
- Enrollment
- 876
- Students per teacher
- 16.5:1
- Resource Index
- 36/100
- Enrollment
- 807
- Students per teacher
- 15.8:1
- Resource Index
- 17/100
- Enrollment
- 771
- Students per teacher
- 12.4:1
- Resource Index
- 45/100
Similar high schools in Allentown
4 comparable high schools (grades 9-12) serving the same city.
Parkland Hs
Standard public school
3,279 students 15.2:1 students per teacher
William Allen Hs
Standard public school
3,074 students 21.8:1 students per teacher
Salisbury Shs
Standard public school
546 students 15.6:1 students per teacher
Building 21 Allentown
Standard public school
415 students 14.8:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Pennsylvania, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,914 students)
Similar student-teacher ratio (~18.1:1)
Next steps
Verify locally before acting on Louis E Dieruff Hs's federal record.
- Compare Louis E Dieruff Hs against another school. Compare schools
- Allentown City Sd'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 Louis E Dieruff Hs
How many students attend Louis E Dieruff Hs?
Louis E Dieruff Hs has 1,914 students enrolled. It is a high school in Allentown, PA.
What is the student-teacher ratio at Louis E Dieruff Hs?
The student-teacher ratio at Louis E Dieruff Hs is 18.1:1, which is 33% higher than the Pennsylvania average of 13.6:1 and 15% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Louis E Dieruff Hs?
88.9% of students at Louis E Dieruff Hs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
What is the racial and ethnic makeup of Louis E Dieruff Hs?
The largest demographic group at Louis E Dieruff Hs is Hispanic or Latino at 73.9% of enrollment, in Allentown, PA.
What is the Resource Investment Index for Louis E Dieruff Hs?
Louis E Dieruff Hs has a Resource Investment Index of 46/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Louis E Dieruff Hs rank among high schools in Allentown?
By Resource Investment Index, Louis E Dieruff Hs ranks #3 of 5 high schools in Allentown, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Allentown on the city page.
Is Louis E Dieruff Hs a good school?
Louis E Dieruff Hs earns 46/100 on the Resource Investment Index, with class sizes larger than 95% of Pennsylvania schools. It is also one of the largest schools in Pennsylvania. 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 Allentown City Sd?
Besides Louis E Dieruff Hs, Allentown City Sd also operates William Allen Hs (3,074 students), South Mountain Ms (972 students), and Francis D Raub Ms (876 students). See the Allentown City Sd 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.