Enrollment
613
Delaware · 2024-25 NCES data
Elementary school (grades K-5) · Hockessin, DE
Federal NCES profile for William F. Cooke Jr. Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
The verdict
William F. Cooke Jr. Elementary earns 56/100 on the Resource Investment Index, with class sizes larger than 72% of Delaware schools.
William F. Cooke Jr. Elementary has class sizes larger than 72% of Delaware schools. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, William F. Cooke Jr. Elementary ranks #2 of 3 public schools in Hockessin, DE.
NCES ID 100130000371 Verify on NCES CCD record →
Enrollment
613
Delaware · 2024-25 NCES data
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
15.3:1
vs 13.9:1 Delaware avg
+10% vs state
How William F. Cooke Jr. Elementary compares with Delaware and U.S. medians
Slightly above state median
15.3:1 - 1.4 above the Delaware state median of 13.9:1, indicating larger average class loads than typical schools in the state.
William F. Cooke Jr. Elementary is a mid-sized elementary school in Hockessin, Delaware, enrolling 613 students.
Class loads run somewhat heavier than typical: 15.3:1 puts it in the larger third of Delaware schools by student-teacher ratio.
With 613 students, its enrollment sits close to the Delaware median campus size.
Its Resource Investment Index outscores 94% of the 222 Delaware schools with a score on record, a top-tier result on this measure.
Its student body is led by White (67%) and Hispanic or Latino (14%) (diversity index 52/100).
Counselor coverage runs a bit thin, about 307 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
10.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Red Clay Consolidated School District spends $21,267 per pupil, 25% above the Delaware average, a better-resourced district than most.
Among Hockessin's elementary schools, it stands alongside North Star Elementary School (589 students): William F. Cooke Jr. Elementary is larger than that campus by headcount and runs heavier classes (15.3:1 vs 15.1:1).
Red Clay Consolidated School District also operates Conrad Schools of Science (1,164 students) and Dickinson (John) School (1,027 students) alongside William F. Cooke Jr. Elementary.
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
William F. Cooke Jr. Elementary on the metrics families compare, against Delaware and U.S. means.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.3:1 | ▲ 10% | 13.9:1 | 15.7:1 |
| Enrollment | 613 | top 37% | - | - |
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 66.7% of enrollment.
Simpson diversity index - at 52.3, William F. Cooke Jr. Elementary is less mixed than the Delaware school average of 61.3.
District-wide per-pupil expenditure for Red Clay Consolidated School District, which includes William F. Cooke Jr. Elementary.
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 |
|---|---|---|---|
| Conrad Schools of Science | Larger | No free-lunch data | Higher S:T ratio |
| Dickinson (John) School | Larger | No free-lunch data | Similar S:T ratio |
| Calloway (Cab) School of the Arts | Larger | No free-lunch data | Higher S:T ratio |
| Brandywine Springs School | Larger | No free-lunch data | Similar S:T ratio |
| Mckean (Thomas) High School | Larger | No free-lunch data | Lower S:T ratio |
Comparisons are relative to William F. Cooke Jr. Elementary's own figures; each column derives from NCES Common Core of Data.
1 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Delaware, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on William F. Cooke Jr. Elementary'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.
William F. Cooke Jr. Elementary has 613 students enrolled. It is an elementary school in Hockessin, DE.
The student-teacher ratio at William F. Cooke Jr. Elementary is 15.3:1, which is 10% higher than the Delaware average of 13.9:1 and 3% lower than the national average of 15.7:1.
The largest demographic group at William F. Cooke Jr. Elementary is White at 66.7% of enrollment, in Hockessin, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.3/100.
William F. Cooke Jr. Elementary has a Resource Investment Index of 56/100 (higher 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, William F. Cooke Jr. Elementary ranks #2 of 3 public schools in Hockessin, DE. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Hockessin on the city page.
William F. Cooke Jr. Elementary earns 56/100 on the Resource Investment Index, with class sizes larger than 72% of Delaware 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 William F. Cooke Jr. Elementary, Red Clay Consolidated School District also operates Conrad Schools of Science (1,164 students), Dickinson (John) School (1,027 students), and Calloway (Cab) School of the Arts (941 students). See the Red Clay Consolidated School District 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, “William F. Cooke Jr. Elementary, Hockessin DE.” 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/william-f-cooke-jr-elementary-de
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