Enrollment
304
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Kennett Square, PA
Federal NCES profile for Mary D Lang Kdg Ctr, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
Mary D Lang Kdg Ctr earns 41/100 on the Resource Investment Index, with class sizes near the Pennsylvania median.
Mary D Lang Kdg Ctr has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mary D Lang Kdg Ctr ranks #3 of 4 elementary schools in Kennett Square, PA.
NCES ID 421269007390 Verify on NCES CCD record →
Enrollment
304
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
14.5:1
vs 13.6:1 Pennsylvania avg
+7% vs state
Free-lunch eligible
41.0%
vs 58.1% Pennsylvania avg
-29% vs state
How Mary D Lang Kdg Ctr compares with Pennsylvania and U.S. medians
Slightly above state median
14.5:1 - 0.9 above the Pennsylvania state median of 13.6:1, indicating larger average class loads than typical schools in the state.
Mary D Lang Kdg Ctr is a mid-sized elementary school in Kennett Square, Pennsylvania, enrolling 304 students.
Class loads run somewhat heavier than typical: 14.5:1 puts it in the larger third of Pennsylvania schools by student-teacher ratio.
Its free-meal eligibility rate of 41.0% lands close to the Pennsylvania typical range, neither a high- nor low-need campus by this measure.
Enrollment of 304 puts it in the smaller third of Pennsylvania schools by headcount.
Its Resource Investment Index lands in the lower third of 2,889 scored Pennsylvania schools.
Among 453 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #378, in the lower tier once campus size and economic need are matched.
Its student body is led by White (53%) and Hispanic or Latino (41%) (diversity index 55/100).
Counselor coverage runs a bit thin, about 304 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 18.8% of students chronically absent per the 2021-22 civil-rights collection.
Among Kennett Square's elementary schools, it stands alongside Greenwood El Sch (556 students): Mary D Lang Kdg Ctr is smaller than that campus by headcount and runs leaner classes (14.5:1 vs 14.6:1).
Kennett Consolidated Sd also operates Kennett Hs (1,184 students) and Kennett Ms (902 students) alongside Mary D Lang Kdg 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
Mary D Lang Kdg 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 | 14.5:1 | ▲ 7% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 41.0% | ▼ 29% | 58.1% | 51.7% |
| Enrollment | 304 | top 77% | - | - |
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: White at 52.6% of enrollment.
Simpson diversity index - at 55.1, Mary D Lang Kdg Ctr is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Kennett Consolidated Sd, which includes Mary D Lang Kdg 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 |
|---|---|---|---|
| Kennett Hs | Larger | Similar economic need | Similar S:T ratio |
| Kennett Ms | Larger | Similar economic need | Lower S:T ratio |
| Greenwood El Sch | Larger | Similar economic need | Similar S:T ratio |
| New Garden El Sch | Larger | Similar economic need | Lower S:T ratio |
| Bancroft El Sch | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Mary D Lang Kdg Ctr's own figures; each column derives from NCES Common Core of Data.
3 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 Mary D Lang Kdg 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.
Mary D Lang Kdg Ctr has 304 students enrolled. It is an elementary school in Kennett Square, PA.
The student-teacher ratio at Mary D Lang Kdg Ctr is 14.5:1, which is 7% higher than the Pennsylvania average of 13.6:1 and 8% lower than the national average of 15.7:1.
41.0% of students at Mary D Lang Kdg Ctr are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Mary D Lang Kdg Ctr is White at 52.6% of enrollment, in Kennett Square, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.1/100.
Mary D Lang Kdg Ctr has a Resource Investment Index of 41/100 (typical 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, Mary D Lang Kdg Ctr ranks #3 of 4 elementary schools in Kennett Square, 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 Kennett Square on the city page.
Mary D Lang Kdg Ctr earns 41/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. 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 Mary D Lang Kdg Ctr, Kennett Consolidated Sd also operates Kennett Hs (1,184 students), Kennett Ms (902 students), and Greenwood El Sch (556 students). See the Kennett Consolidated 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, “Mary D Lang Kdg Ctr, Kennett Square 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/mary-d-lang-kdg-ctr-pa
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