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%)
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2026 school year, there are 2 public high schools serving 2,164 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 33%), 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 78% of the student body (majority Black), which is more than the Delaware public high school average of 62% (majority Black).
Overview
This School District
This State (DE)
# Schools
15 Schools
60 Schools
# Students
8,575 Students
57,355 Students
# Teachers
595 Teachers
3,754 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%