Enrollment
977
Delaware · 2024-25 NCES data
High school (grades 9-12) · Wilmington, DE
Charter School of Wilmington
Federal NCES profile for Charter School of Wilmington, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 57/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 100000400012Charter school
👥 S:T ratio 23
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 51
📋 Attendance 81
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Charter School of Wilmington earns 57/100 on the Resource Investment Index, with class sizes larger than 94% of Delaware schools.
- #1 of 9
- high schools in Wilmington · Resource Index
- 57
- Resource Index · Higher
- 19.2:1
- large classes for Delaware
- 977
- students enrolled
Charter School of Wilmington has class sizes larger than 94% of Delaware schools. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, Charter School of Wilmington ranks #1 of 9 high schools in Wilmington, DE.
School address
District: Charter School of Wilmington · Delaware
NCES ID 100000400012 Verify on NCES CCD record →
Teachers (FTE)
51.0
Federal CCD staff survey
Students per teacher
19.2:1
vs 13.9:1 Delaware avg
+38% vs state
Student-teacher ratio in context
How Charter School of Wilmington compares with Delaware and U.S. medians
What stands out at Charter School of Wilmington
Charter School of Wilmington is a large charter high school in Wilmington, Delaware, enrolling 977 students.
Class loads run heavy: 19.2:1 is larger than about 94% of Delaware schools and 38% above the 13.9:1 state mean, so each teacher carries more students than is typical.
Enrollment of 977 puts it in the larger third of Delaware schools by headcount.
Its Resource Investment Index lands in the upper third of 222 scored Delaware schools.
Its student body is led by White (40%) and Asian (39%) (diversity index 67/100).
On the academic-pipeline side it reports 21 Advanced Placement courses.
Counselor coverage is strong, about 244 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 7.8% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Charter School of Wilmington spends $9,658 per pupil, 43% below the Delaware average, a leaner-resourced district than most.
Among Wilmington's high schools, it stands alongside Delcastle Technical High School (1,605 students): Charter School of Wilmington is smaller than that campus by headcount and runs heavier classes (19.2:1 vs 12.5:1).
Charter School of Wilmington is a single-school charter district, so Charter School of Wilmington operates independently rather than alongside district-mates.
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 Charter School of Wilmington compares
Charter School of Wilmington on the metrics families compare, against Delaware and U.S. means.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.2:1 | ▲ 38% | 13.9:1 | 15.7:1 |
| Enrollment | 977 | top 14% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.2:1
Leaner classes than 19% of US schools, heavier class loads than most.
977
Bigger than 91% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
19.2:1
students per teacher
- 38% above state mean
Top 94% in Delaware - lower ratio than 6% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
7.8%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$9,658
per pupil, district-wide
- below Delaware avg of $16,990
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors4.0 FTE
Per 244 students, the combined health-and-guidance staffing load for this school.
Discipline context
13
in-school suspensions + 10 out-of-school
Suspension rate: 1.3 per 100 students. Combined in-school and out-of-school rate: 2.4 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 40.3%
Asian 39.1%
Hispanic or Latino 8.1%
African American 7.6%
Two or More 4.3%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 40.3% of enrollment.
Student-body diversity index 67.1/100
Simpson diversity index - at 67.1, Charter School of Wilmington is more mixed than the Delaware school average of 61.3.
Programs
AP courses offered 21
Funding & spending
District-wide per-pupil expenditure for Charter School of Wilmington, which includes Charter School of Wilmington.
$9,658
Per student
-43%
vs Delaware
Avg $16,990
-42%
vs U.S.
Avg $16,593
Revenue mix
Local 38.7%
State 56.8%
Federal 4.5%
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.
Similar high schools in Wilmington
6 comparable high schools (grades 9-12) serving the same city.
Delcastle Technical High School
Vocational / career-technical school
1,605 students 12.5:1 students per teacher
Mount Pleasant High School
Standard public school
1,084 students 14.1:1 students per teacher
Concord High School
Standard public school
994 students 13.6:1 students per teacher
Mckean (Thomas) High School
Standard public school
920 students 13:1 students per teacher
Howard High School of Technology
Vocational / career-technical school
905 students 13.7:1 students per teacher
Brandywine High School
Standard public school
897 students 13:1 students per teacher
Similar high 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 (~977 students)
Similar student-teacher ratio (~19.2:1)
Next steps
Verify locally before acting on Charter School of Wilmington's federal record.
- Compare Charter School of Wilmington against another school. Compare schools
- Charter School of Wilmington'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 Charter School of Wilmington
How many students attend Charter School of Wilmington?
Charter School of Wilmington has 977 students enrolled. It is a high school in Wilmington, DE.
What is the student-teacher ratio at Charter School of Wilmington?
The student-teacher ratio at Charter School of Wilmington is 19.2:1, which is 38% higher than the Delaware average of 13.9:1 and 22% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Charter School of Wilmington?
The largest demographic group at Charter School of Wilmington is White at 40.3% of enrollment, in Wilmington, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.1/100.
What is the Resource Investment Index for Charter School of Wilmington?
Charter School of Wilmington has a Resource Investment Index of 57/100 (higher reported resources relative to schools nationally) based on 5 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 Charter School of Wilmington rank among high schools in Wilmington?
By Resource Investment Index, Charter School of Wilmington ranks #1 of 9 high 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 high schools in Wilmington on the city page.
Is Charter School of Wilmington a good school?
Charter School of Wilmington earns 57/100 on the Resource Investment Index, with class sizes larger than 94% 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 Charter School of Wilmington?
None; Charter School of Wilmington is a single-school charter district, and Charter School of Wilmington is its only campus.
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.