For the 2026-27 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.
Historical Statistics Overview
This State (DE)
US
# Schools
1 Schools
271 Schools
# Students
315 Students
107,111 Students
Academics and Faculty
This State (DE)
US
Average Student-Teacher Ratio
5:1
8:1
% Faculty with Advanced Degree
74%
69%
Academic Programs
This State (DE)
US
Avg. AP Courses
44
22
Avg. IB Courses
n/a
28
Avg. Class Size
12
13
Academic Performance
This State (DE)
US
Avg. SAT Score
1372
1270
Avg. ACT Score
28
27
Avg. Acceptance Rate
22%
59%
Tuition and Finances
This State (DE)
US
Avg. Tuition (Boarding)
$72,870
$64,480
Avg. Tuition (Day)
n/a
$38,054
Avg. Tuition (International)
n/a
$62,481
Avg. Financial Aid Rate
44%
42%
Avg. Financial Aid Grant
$52,826
$26,973
Avg. Endowment
$230 MM
$83 MM
Student Diversity
This State (DE)
US
% Students of Color
41%
30%
% International Students
12%
27%
% Boarding Students
100%
59%
Top Delaware Boarding Schools (2026-27)
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.
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