Enrollment
1,164
Delaware · 2024-25 NCES data
Other / mixed grade configuration · Wilmington, DE
Conrad Schools of Science
Federal NCES profile for Conrad Schools of Science, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataOther / mixed grade configurationNCES 100130000270
👥 S:T ratio 28
🌟 Gifted program 30
🎓 Counselors 22
📋 Attendance 77
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Conrad Schools of Science earns 40/100 on the Resource Investment Index, with class sizes larger than 90% of Delaware schools.
- #4 of 13
- schools in Wilmington · Resource Index
- 40
- Resource Index · Typical
- 17.9:1
- large classes for Delaware
- 1,164
- students enrolled
Conrad Schools of Science has class sizes larger than 90% of Delaware schools. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, Conrad Schools of Science ranks #4 of 13 schools in Wilmington, DE.
School address
District: Red Clay Consolidated School District · Delaware
NCES ID 100130000270 Verify on NCES CCD record →
Teachers (FTE)
65.0
Federal CCD staff survey
Students per teacher
17.9:1
vs 13.9:1 Delaware avg
+29% vs state
Student-teacher ratio in context
How Conrad Schools of Science compares with Delaware and U.S. medians
What stands out at Conrad Schools of Science
Conrad Schools of Science is a large combined-grade school in Wilmington, Delaware, enrolling 1,164 students.
Class loads run heavy: 17.9:1 is larger than about 90% of Delaware schools and 29% above the 13.9:1 state mean, so each teacher carries more students than is typical.
By headcount it is one of the larger campuses in Delaware, bigger than 91% of state schools at 1,164 students.
Its Resource Investment Index sits near the middle of the pack among 222 scored Delaware schools.
Its student body is led by White (50%) and Hispanic or Latino (29%) (diversity index 65/100).
Counselor availability sits well past the ASCA benchmark, roughly 388 students sharing each counselor, though short of the most stretched campuses.
Attendance holds up well here: only 9.1% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Red Clay Consolidated School District spends $21,267 per pupil, 25% above the Delaware average, a better-resourced district than most.
Among Wilmington's public schools, it stands alongside Odyssey Charter School (2,286 students): Conrad Schools of Science is smaller than that campus by headcount and runs heavier classes (17.9:1 vs 14:1).
Red Clay Consolidated School District also operates Dickinson (John) School (1,027 students) and Calloway (Cab) School of the Arts (941 students) alongside Conrad Schools of Science.
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 Conrad Schools of Science compares
Conrad Schools of Science on the metrics families compare, against Delaware and U.S. means.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.9:1 | ▲ 29% | 13.9:1 | 15.7:1 |
| Enrollment | 1,164 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.9:1
Leaner classes than 25% of US schools, heavier class loads than most.
1,164
Bigger than 94% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
17.9:1
students per teacher
- 29% above state mean
Top 90% in Delaware - lower ratio than 10% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
9.1%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$21,267
per pupil, district-wide
- above Delaware avg of $16,990
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors3.0 FTE
Per 388 students, the combined health-and-guidance staffing load for this school.
Discipline context
29
in-school suspensions + 39 out-of-school
Suspension rate: 2.5 per 100 students. Combined in-school and out-of-school rate: 5.8 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
White 50.0%
Hispanic or Latino 29.0%
African American 12.2%
Asian 4.6%
Two or More 4.0%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 50.0% of enrollment.
Student-body diversity index 64.7/100
Simpson diversity index - at 64.7, Conrad Schools of Science is more mixed than the Delaware school average of 61.3.
Programs
AP courses offered 19
Funding & spending
District-wide per-pupil expenditure for Red Clay Consolidated School District, which includes Conrad Schools of Science.
$21,267
Per student
+25%
vs Delaware
Avg $16,990
+28%
vs U.S.
Avg $16,593
Revenue mix
Local 37.2%
State 48.1%
Federal 14.7%
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 Conrad Schools of Science Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dickinson (John) School | Similar size | No free-lunch data | Lower S:T ratio |
| Calloway (Cab) School of the Arts | Similar size | No free-lunch data | Similar S:T ratio |
| Brandywine Springs School | Similar size | No free-lunch data | Lower S:T ratio |
| Mckean (Thomas) High School | Similar size | No free-lunch data | Lower S:T ratio |
| Dupont (H.B.) Middle School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Conrad Schools of Science's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,027
- Students per teacher
- 16:1
- Resource Index
- 34/100
- Enrollment
- 941
- Students per teacher
- 18.1:1
- Resource Index
- 43/100
- Enrollment
- 941
- Students per teacher
- 15.4:1
- Resource Index
- 47/100
- Enrollment
- 920
- Students per teacher
- 13:1
- Resource Index
- 33/100
- Enrollment
- 764
- Students per teacher
- 15.9:1
- Resource Index
- 41/100
Similar other schools in Wilmington
6 comparable other schools (grades Mixed) serving the same city.
Odyssey Charter School
Standard public school
2,286 students 14:1 students per teacher
Dickinson (John) School
Standard public school
1,027 students 16:1 students per teacher
Calloway (Cab) School of the Arts
Standard public school
941 students 18.1:1 students per teacher
The Bancroft School
Standard public school
616 students 13.7:1 students per teacher
Freire Charter School
Standard public school
406 students 15:1 students per teacher
Red Clay Early Years Program
Alternative education program
335 students 14:1 students per teacher
Similar other schools statewide
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.
Similar enrollment (~1,164 students)
Similar student-teacher ratio (~17.9:1)
Next steps
Verify locally before acting on Conrad Schools of Science's federal record.
- Compare Conrad Schools of Science against another school. Compare schools
- Red Clay Consolidated School District'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 Conrad Schools of Science
How many students attend Conrad Schools of Science?
Conrad Schools of Science has 1,164 students enrolled. It is a public school in Wilmington, DE.
What is the student-teacher ratio at Conrad Schools of Science?
The student-teacher ratio at Conrad Schools of Science is 17.9:1, which is 29% higher than the Delaware average of 13.9:1 and 14% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Conrad Schools of Science?
The largest demographic group at Conrad Schools of Science is White at 50.0% of enrollment, in Wilmington, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.7/100.
What is the Resource Investment Index for Conrad Schools of Science?
Conrad Schools of Science has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Conrad Schools of Science rank among schools in Wilmington?
By Resource Investment Index, Conrad Schools of Science ranks #4 of 13 schools in Wilmington, DE. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Wilmington on the city page.
Is Conrad Schools of Science a good school?
Conrad Schools of Science earns 40/100 on the Resource Investment Index, with class sizes larger than 90% 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.
What other schools are in Red Clay Consolidated School District?
Besides Conrad Schools of Science, Red Clay Consolidated School District also operates Dickinson (John) School (1,027 students), Calloway (Cab) School of the Arts (941 students), and Brandywine Springs School (941 students). See the Red Clay Consolidated School District 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.