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.
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: 4:1 Avg. class size: 10 students Acceptance rate: 22% Tuition listed
Historical Statistics Overview
This State (DE)
US (avg. per state)
# Schools
1 School
6.4 Schools
# Students
315 Students
2,517 Students
Academics and Faculty
South Region*
US
* Fewer than 3 schools in Delaware report these figures, so the South regional average is shown.
Average Student-Teacher Ratio
8:1
8:1
% Faculty with Advanced Degree
67%
69%
Academic Programs
South Region*
US
* Fewer than 3 schools in Delaware report these figures, so the South regional average is shown.
Avg. AP Courses
23
22
Avg. IB Courses
32
28
Avg. Class Size
13
13
Academic Performance
South Region*
US
* Fewer than 3 schools in Delaware report these figures, so the South regional average is shown.
Avg. SAT Score
1232
1271
Avg. ACT Score
26
27
Avg. Acceptance Rate
64%
59%
Tuition and Finances
South Region*
US
* Fewer than 3 schools in Delaware report these figures, so the South regional average is shown.
Avg. Tuition (Boarding)
$58,423
$64,455
Avg. Tuition (Day)
$29,034
$38,004
Avg. Tuition (International)
$60,474
$62,450
Avg. Financial Aid Rate
49%
42%
Avg. Financial Aid Grant
$21,503
$27,075
Avg. Endowment
$62 MM
$84 MM
Student Diversity
South Region*
US
* Fewer than 3 schools in Delaware report these figures, so the South regional average is shown.
% Students of Color
28%
30%
% International Students
18%
27%
% Boarding Students
54%
59%
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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