For the 2025-26 school year, there are 1 college-prep and junior boarding schools serving 315 students located throughout Delaware.
You can also browse our full boarding school directory or specify additional search criteria.
Top Delaware Boarding Schools (2025-26)
School
Location
Quick Facts
350 Noxontown Road
Middletown, DE 19709
(302) 285-4231
Middletown, DE 19709
(302) 285-4231
Gr: 9-12 | 315 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 22% Tuition listed
Frequently Asked Questions
How many boarding schools are located in Delaware?
There is 1 college-preparatory boarding schools located in Delaware.
What is the oldest boarding school in Delaware?
St. Andrew's School, DE, founded in 1929, is the oldest boarding school in Delaware.
Recent Articles
Types of Boarding Schools (2025 Updated Guide)
Explore key types of boarding schools in 2025 with updated tuition, trends, and expert insights to guide families in choosing the right fit.
Career Pathways Through Boarding School Programs
Explore how Career Pathways Through Boarding School shape internships, mentorships, and long-term success for today’s students.
Boarding vs Day School: Which Is the Better Investment?
Boarding vs Day School costs, value, outcomes, and ROI explained for families weighing today’s educational investment.



