Top Rankings
Colonial School District ranks among the top 20% of public school district in Delaware for:
Category
Attribute
Community Size
Largest student body (number of students) (Top 1%)
For the 2026 school year, there are 2 public high schools serving 2,163 students in Colonial School District. This district's average high testing ranking is 3/10, which is in the bottom 50% of public high schools in Delaware.
Public High Schools in Colonial School District have an average math proficiency score of 13% (versus the Delaware public high school average of 32%), and reading proficiency score of 32% (versus the 51% statewide average).
Public High School in Colonial School District have a Graduation Rate of 84%, which is less than the Delaware average of 89%.
The school with highest graduation rate is Penn (William) High School, with 84% graduation rate. Read more about public school graduation rate statistics in Delaware or national school graduation rate statistics.
Minority enrollment is 76% of the student body (majority Black), which is more than the Delaware public high school average of 60% (majority Black).
Overview
This School District
This State (DE)
# Schools
15 Schools
58 Schools
# Students
8,778 Students
55,625 Students
# Teachers
609 Teachers
3,765 Teachers
Student-Teacher Ratio
14:1
14:1
Student By Grade
District Rank
Colonial School District, which is ranked within the bottom 50% of all 42 school districts in Delaware (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 84% has increased from 80% over five school years.
Overall District Rank
#32 out of 42 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15%
31%
Reading/Language Arts Test Scores (% Proficient)
29%
42%
Science Test Scores (% Proficient)
11%
21%
Graduation Rate
84%
88%
Students by Ethnicity:
Diversity Score
0.69
0.72
% American Indian
1%
n/a
% Asian
2%
5%
% Hispanic
22%
20%
% Black
45%
30%
% White
25%
40%
% Hawaiian
n/a
n/a
% Two or more races
5%
5%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $23,415 is higher than the state median of $20,330. The school district revenue/student has grown by 16% over four school years.
The school district's spending/student of $21,634 is higher than the state median of $18,410. The school district spending/student has grown by 13% over four school years.
Total Revenue
$206 MM
$2,882 MM
Spending
$190 MM
$2,610 MM
Revenue / Student
$23,415
$20,330
Spending / Student
$21,634
$18,410
Best Colonial School District Public High Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Leach (John G.) School
Special Education School
(Math: <50% | Reading: <50%)
Rank:
Rank:
9/
Top 20%10
10 Landers Lane
New Castle, DE 19720
(302) 429-4055
New Castle, DE 19720
(302) 429-4055
Gr: PK-12 | 86 students Student-teacher ratio: 5:1 Minority enrollment: 66%
Rank: #22.
Penn (William) High School
(Math: 11% | Reading: 32%)
Rank:
Rank:
3/
Bottom 50%10
713 East Basin Road
New Castle, DE 19720
(302) 323-2800
New Castle, DE 19720
(302) 323-2800
Gr: 9-12 | 2,077 students Student-teacher ratio: 17:1 Minority enrollment: 76%
Recent Articles
Spring Parent-Teacher Conferences: Key Questions
Spring Parent-Teacher Conferences: Questions Every Parent Should Ask to support academic growth, social development, and 2026 classroom goals.
Prepare for Spring Tests Without Anxiety
Learn how to prepare for spring standardized tests without increasing anxiety using proven strategies for families and schools.
Why Public Schools Are Launching Marketing Campaigns in 2026
Discover why public schools are launching marketing campaigns in 2026 and how enrollment shifts, school choice, and funding pressures are driving change.
