Enrollment
499
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Primos, PA
Primos El Sch
Federal NCES profile for Primos El Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
2024-25 NCES dataElementary school (grades K-5)NCES 422432000042
👥 S:T ratio 46
🌟 Gifted program 70
📋 Attendance 58
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Primos El Sch earns 58/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. It is also more racially and ethnically mixed than most Pennsylvania schools.
- 58
- Resource Index · Higher
- 13.5:1
- students per teacher
- 100.0%
- free-lunch eligible
- 499
- students enrolled
Primos El Sch has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
School address
District: Upper Darby Sd · Pennsylvania
NCES ID 422432000042 Verify on NCES CCD record →
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
13.5:1
vs 13.6:1 Pennsylvania avg
-1% vs state
Free-lunch eligible
100.0%
vs 58.1% Pennsylvania avg
+72% vs state
Student-teacher ratio in context
How Primos El Sch compares with Pennsylvania and U.S. medians
What stands out at Primos El Sch
Primos El Sch is a high-poverty, mid-sized elementary school in Primos, Pennsylvania, enrolling 499 students.
At 13.5:1, its student-teacher ratio sits close to the Pennsylvania median, within a few percentage points of the 13.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 100.0% of students eligible for free meals.
With 499 students, its enrollment sits close to the Pennsylvania median campus size.
Its Resource Investment Index lands in the upper third of 2,889 scored Pennsylvania schools.
Among 531 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #16, a top-tier result once campus size and economic need are matched.
Its student body is led by African American (47%) and White (23%), more mixed than most schools in the state (diversity index 70/100).
16.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Upper Darby Sd also operates Upper Darby Shs (4,187 students) and Beverly Hills Ms (1,475 students) alongside Primos El Sch.
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 Primos El Sch compares
Primos El Sch on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.5:1 | ▼ 1% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 72% | 58.1% | 51.7% |
| Enrollment | 499 | top 44% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.5:1
Leaner classes than 62% of US schools, a middle-of-the-pack class size.
499
Bigger than 62% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
100.0%
free-lunch eligible
- 72% 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
13.5:1
students per teacher
- 1% below state mean
Top 53% in Pennsylvania - lower ratio than 47% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
16.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$14,728
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 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
African American 46.7%
White 23.2%
Two or More 11.6%
Asian 9.2%
Hispanic or Latino 9.0%
American Indian / Alaska Native 0.2%
Largest group: African American at 46.7% of enrollment.
Student-body diversity index 69.8/100
Simpson diversity index - at 69.8, Primos El Sch is more mixed than the Pennsylvania school average of 37.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Upper Darby Sd, which includes Primos El Sch.
$14,728
Per student
-18%
vs Pennsylvania
Avg $17,970
-11%
vs U.S.
Avg $16,593
Revenue mix
Local 49.9%
State 37.4%
Federal 12.7%
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 Primos El Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Upper Darby Shs | Larger | Similar economic need | Higher S:T ratio |
| Beverly Hills Ms | Larger | Similar economic need | Higher S:T ratio |
| Drexel Hill Ms | Larger | Similar economic need | Similar S:T ratio |
| Highland Park El Sch | Larger | Similar economic need | Higher S:T ratio |
| Bywood El Sch | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Primos El Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 4,187
- Students per teacher
- 18.9:1
- Resource Index
- 50/100
- Enrollment
- 1,475
- Students per teacher
- 15.4:1
- Resource Index
- 37/100
- Enrollment
- 1,244
- Students per teacher
- 14.6:1
- Resource Index
- 42/100
- Enrollment
- 737
- Students per teacher
- 15.4:1
- Resource Index
- 41/100
- Enrollment
- 683
- Students per teacher
- 14.2:1
- Resource Index
- 39/100
Similar elementary 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 (~499 students)
Similar student-teacher ratio (~13.5:1)
Next steps
Verify locally before acting on Primos El Sch's federal record.
- Compare Primos El Sch against another school. Compare schools
- Upper Darby 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 Primos El Sch
How many students attend Primos El Sch?
Primos El Sch has 499 students enrolled. It is an elementary school in Primos, PA.
What is the student-teacher ratio at Primos El Sch?
The student-teacher ratio at Primos El Sch is 13.5:1, which is 1% lower than the Pennsylvania average of 13.6:1 and 14% 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 Primos El Sch?
100.0% of students at Primos El Sch are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
What is the racial and ethnic makeup of Primos El Sch?
The largest demographic group at Primos El Sch is African American at 46.7% of enrollment, in Primos, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.8/100.
What is the Resource Investment Index for Primos El Sch?
Primos El Sch has a Resource Investment Index of 58/100 (higher 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).
Is Primos El Sch a good school?
Primos El Sch earns 58/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. It is also more racially and ethnically mixed than most Pennsylvania 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 Upper Darby Sd?
Besides Primos El Sch, Upper Darby Sd also operates Upper Darby Shs (4,187 students), Beverly Hills Ms (1,475 students), and Drexel Hill Ms (1,244 students). See the Upper Darby 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.