Enrollment
345
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Reading, PA
Federal NCES profile for Mt Penn Primary Ctr, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
The verdict
Mt Penn Primary Ctr earns 21/100 on the Resource Investment Index, with class sizes larger than 99% of Pennsylvania schools.
Mt Penn Primary Ctr has class sizes larger than 99% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mt Penn Primary Ctr ranks #12 of 12 elementary schools in Reading, PA.
NCES ID 420248007687 Verify on NCES CCD record →
Enrollment
345
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
26.5:1
vs 13.6:1 Pennsylvania avg
+95% vs state
Free-lunch eligible
100.0%
vs 58.1% Pennsylvania avg
+72% vs state
How Mt Penn Primary Ctr compares with Pennsylvania and U.S. medians
Larger classes than state median
26.5:1 - 12.9 above the Pennsylvania state median of 13.6:1, indicating larger average class loads than typical schools in the state.
Mt Penn Primary Ctr is a high-poverty, mid-sized elementary school in Reading, Pennsylvania, enrolling 345 students.
Class loads run heavy: 26.5:1 is larger than about 99% of Pennsylvania schools and 95% 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 100.0% of students eligible for free meals.
Enrollment of 345 puts it in the smaller third of Pennsylvania schools by headcount.
Its Resource Investment Index trails 98% of the 2,889 Pennsylvania schools with a score on record, one of the lower results on this measure.
Among 452 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #447, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (57%) and White (32%) (diversity index 57/100).
Counselor availability sits well past the ASCA benchmark, roughly 345 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 30.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Reading's elementary schools, it stands alongside Central Ms (1,785 students): Mt Penn Primary Ctr is smaller than that campus by headcount and runs heavier classes (26.5:1 vs 15:1).
Antietam Sd also operates Mt Penn El Sch (434 students) and Antietam Ms/Hs (360 students) alongside Mt Penn Primary Ctr.
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
Mt Penn Primary Ctr on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 26.5:1 | ▲ 95% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 72% | 58.1% | 51.7% |
| Enrollment | 345 | top 70% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 57.1% of enrollment.
Simpson diversity index - at 56.6, Mt Penn Primary Ctr is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Antietam Sd, which includes Mt Penn Primary Ctr.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mt Penn El Sch | Larger | Similar economic need | Lower S:T ratio |
| Antietam Ms/Hs | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Mt Penn Primary Ctr's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Mt Penn Primary Ctr's federal record.
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.
Mt Penn Primary Ctr has 345 students enrolled. It is an elementary school in Reading, PA.
The student-teacher ratio at Mt Penn Primary Ctr is 26.5:1, which is 95% higher than the Pennsylvania average of 13.6:1 and 69% higher than the national average of 15.7:1.
100.0% of students at Mt Penn Primary Ctr are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Mt Penn Primary Ctr is Hispanic or Latino at 57.1% of enrollment, in Reading, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.6/100.
Mt Penn Primary Ctr has a Resource Investment Index of 21/100 (lower 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).
By Resource Investment Index, Mt Penn Primary Ctr ranks #12 of 12 elementary schools in Reading, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Reading on the city page.
Mt Penn Primary Ctr earns 21/100 on the Resource Investment Index, with class sizes larger than 99% of 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.
Besides Mt Penn Primary Ctr, Antietam Sd also operates Mt Penn El Sch (434 students) and Antietam Ms/Hs (360 students). See the Antietam Sd district page for the complete list.
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.
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PlainSchools, “Mt Penn Primary Ctr, Reading PA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mt-penn-primary-ctr-pa
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