Private School Review - Established 2003
Centreville Layton School Top 3 · Lowest Acceptance Rate (DE)
Wilmington Friends School Top 3 · Highest Avg. ACT Score (DE)
Archmere Academy Top 3 · Highest % Faculty w/ Adv. Degrees (DE)

Best Delaware Private High Schools Belonging to Association of Delaware Valley Independent Schools (ADVIS) (2026-27)

For the 2026-27 school year, there are 6 private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) serving 3,540 students in Delaware. You can also find more schools membership associations in Delaware.
The top ranked private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware include The Tatnall School, Tower Hill School, and Salesianum School.
The average acceptance rate is 73%, which is lower than the Delaware private high school average acceptance rate of 85%.
50% of private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware are religiously affiliated (most commonly Catholic and Friends).

Quick Facts (2026-27)

  • # Private Schools: 6

Quick Facts (2026-27)

  • # Private Schools: 6

Top Ranked Private High Schools Belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware (2026-27)

Centreville Layton School Photo
Centreville Layton School
Gr: K-12 | 97 students
Avg. class size: 8 students
Sports: 6
Alternative School
6201 Kennett Pike
Wilmington, DE 19807
(302) 571-0230
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Wilmington Friends School Photo
Wilmington Friends School
Gr: NS-12 | 709 students
Avg. class size: 12 students
Sports: 14 | Extracurriculars: 39
Friends
101 School Road
Wilmington, DE 19803
(302) 576-2900
(1)
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Archmere Academy Photo
Archmere Academy
Gr: 9-12 | 469 students
Avg. class size: 15 students
Sports: 20 | Extracurriculars: 38
Catholic
3600 Philadelphia Pike
Claymont, DE 19703
(302) 798-6632
(7)
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Salesianum School Photo
Salesianum School
Gr: 9-12 | 930 students
Avg. class size: 18 students
Sports: 21 | Extracurriculars: 60
All-boys (Catholic)
1801 N Broom Street
Wilmington, DE 19802
(302) 654-2495
(1)
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The Tatnall School Photo
The Tatnall School
Gr: NS-12 | 486 students
Avg. class size: 12 students
Sports: 15 | Extracurriculars: 9
1501 Barley Mill Road
Wilmington, DE 19807
(302) 892-4296
(15)
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Tower Hill School Photo
Tower Hill School
Gr: NS-12 | 870 students
Avg. class size: 15 students
Sports: 17 | Extracurriculars: 24
2813 W 17th Street
Wilmington, DE 19806
(302) 575-0550
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Frequently Asked Questions

What are the top ranked private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware?
The top ranked private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware include The Tatnall School, Tower Hill School, and Salesianum School.
How many private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) are located in Delaware?
6 private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) are located in Delaware.
How diverse are private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware?
Delaware private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) are approximately 21% minority students, which is lower than the Delaware private school average of 26%.
What percentage of private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) are religiously affiliated in Delaware?
50% of private high schools belonging to Association of Delaware Valley Independent Schools (ADVIS) in Delaware are religiously affiliated (most commonly Catholic and Friends).
6
Private Schools
3,540
Students
$32,300
Avg. Tuition
21%
Students of Color
9:1
Student-Teacher Ratio

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