The Charter School of Wilmington is a college preparatory charter high school in Wilmington, Delaware. It is Delaware's first independently operated public school whose curriculum emphasizes math and science. It shares the former Wilmington High School building with Cab Calloway School of the Arts.
Serving 977 students in grades 9-12, Charter School Of Wilmington ranks in the top 1% of all schools in Delaware for overall test scores (math proficiency is top 1%, and reading proficiency is top 1%).
The percentage of students achieving proficiency in math is 87% (which is higher than the Delaware state average of 31%). The percentage of students achieving proficiency in reading/language arts is 94% (which is higher than the Delaware state average of 42%).
The student-teacher ratio of 19:1 is higher than the Delaware state level of 15:1.
Minority enrollment is 60% of the student body (majority Asian), which is lower than the Delaware state average of 62% (majority Black and Hispanic).
Quick Facts (2026)
- School Type: Charter School
- Grades: 9-12
- Enrollment: 977 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 60%
- Graduation Rate: ≥99% (Top 5% in DE)
- Overall Testing Rank: Top 1%
- Math Proficiency: 87% (Top 1%)
- Reading Proficiency: 94% (Top 1%)
- Science Proficiency: 54% (Top 5%)
- Source: National Center for Education Statistics (NCES), DE Dept. of Education
Top Rankings
Charter School Of Wilmington ranks among the top 20% of public schools in Delaware for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Charter School Of Wilmington's student population of 977 students has stayed relatively flat over five school years.
The teacher population of 51 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
977 students
Total Classroom Teachers
51 teachers
Year Founded
1996
Colors
White, Blue
School Calendar
Average Class Size
15 students
School Rankings
Charter School Of Wilmington ranks within the top 1% of all 199 schools in Delaware (based off of combined math and reading proficiency testing data).
The diversity score of Charter School Of Wilmington is 0.68, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1 out of 199 schools
(Top 1%)
(Top 1%)
Math Test Scores (% Proficient)
87%
31%
Reading/Language Arts Test Scores (% Proficient)
94%
42%
Science Test Scores (% Proficient)
54%
21%
Student-Teacher Ratio
19:1
15:1
American Indian
1%
n/a
Asian
39%
5%
Hispanic
8%
20%
Black
8%
31%
White
40%
38%
Hawaiian
n/a
n/a
Two or more races
4%
6%
All Ethnic Groups
Graduation Rate
≥99%
88%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
4%
33%
Eligible for Reduced Lunch (11-12)
1%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), DE Dept. of Education
School Notes
- School Mascot: The Force Horse (lightning Bolt)
Frequently Asked Questions
What is Charter School Of Wilmington's ranking?
Charter School Of Wilmington is ranked #1 out of 199 schools, which ranks it among the top 1% of public schools in Delaware.
What schools are Charter School Of Wilmington often compared to?
Charter School Of Wilmingtonis often viewed alongside schools like Newark Charter School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
87% of students have achieved math proficiency (compared to the 31% DE state average), while 94% of students have achieved reading proficiency (compared to the 42% DE state average).
What is the graduation rate of Charter School Of Wilmington?
The graduation rate of Charter School Of Wilmington is 99%, which is higher than the Delaware state average of 88%.
How many students attend Charter School Of Wilmington?
977 students attend Charter School Of Wilmington.
What is the racial composition of the student body?
40% of Charter School Of Wilmington students are White, 39% of students are Asian, 8% of students are Hispanic, 8% of students are Black, 4% of students are Two or more races, and 1% of students are American Indian.
What is the student-teacher ratio of Charter School Of Wilmington?
Charter School Of Wilmington has a student ration of 19:1, which is higher than the Delaware state average of 15:1.
What grades does Charter School Of Wilmington offer ?
Charter School Of Wilmington offers enrollment in grades 9-12 (No virtual instruction).
What school district is Charter School Of Wilmington part of?
Charter School Of Wilmington is part of Charter School Of Wilmington School District.
In what neighborhood is Charter School Of Wilmington located?
Charter School Of Wilmington is located in the Westmoreland neighborhood of Wilmington, DE. There are 1 other public schools located in Westmoreland.
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