For the 2026 school year, there are 7 private high schools belonging to Middle States Association of Colleges and Secondary Schools serving 4,452 students in Delaware. You can also find more schools membership associations in Delaware.
The top-ranked private high schools belonging to Middle States Association of Colleges and Secondary Schools in Delaware include Tower Hill School, St. Elizabeth School, and The Tatnall School.
The average acceptance rate is 81%, which is lower than the Delaware private high school average acceptance rate of 87%.
Top-Ranked Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools in Delaware (2026)
School
Location
Quick Facts
Red Lion Christian Academy ![Red Lion Christian Academy Photo - ELEMENTARY PLAYGROUND]( "Red Lion Christian Academy Photo - ELEMENTARY PLAYGROUND")
(Christian)
1390 Red Lion Road
Bear, DE 19701
(302) 834-2526
Bear, DE 19701
(302) 834-2526
Gr: NS-12 | 1,002 students Avg. class size: 20 students Sports: 13 | Extracurrculars: 28 Tuition & acceptance rate listed
St. Elizabeth School ![St. Elizabeth School Photo]( "St. Elizabeth School Photo")
(Catholic)
1500 Cedar St
Wilmington, DE 19805
(302) 656-3369
Wilmington, DE 19805
(302) 656-3369
Gr: PK-12 | 433 students Avg. class size: 20 students Sports: 14 Tuition listed
2501 Pike Creek Road
Wilmington, DE 19808
(302) 757-8721
Wilmington, DE 19808
(302) 757-8721
Gr: 9-12 | 716 students Avg. class size: 20 students Sports: 17 | Extracurrculars: 34 Tuition listed
1801 N Broom Street
Wilmington, DE 19802
(302) 654-2495
Wilmington, DE 19802
(302) 654-2495
Gr: 9-12 | 930 students Avg. class size: 18 students Sports: 21 | Extracurrculars: 60 Tuition & acceptance rate listed
1501 Barley Mill Road
Wilmington, DE 19807
(302) 892-4296
Wilmington, DE 19807
(302) 892-4296
Gr: NS-12 | 486 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 9 Tuition listed
2813 W 17th Street
Wilmington, DE 19806
(302) 575-0550
Wilmington, DE 19806
(302) 575-0550
Gr: NS-12 | 849 students Avg. class size: 15 students Sports: 17 | Extracurrculars: 24 Tuition & acceptance rate listed
Towle Institute
Alternative School (Christian)
199 Polly Drummond Hill Road
Newark, DE 19711
(302) 993-1408
Newark, DE 19711
(302) 993-1408
Gr: 4-12 | 36 students Avg. class size: 14 students Tuition listed
Recent Articles
Private School Closures and Consolidations: Warning Signs to Watch
Learn the financial, enrollment, and leadership warning signs that may indicate a private school is at risk of closure or consolidation, and how families can prepare.
AI Tutoring in Private Schools: Innovation or Risk?
Discover how AI tutoring is changing private education, the benefits and risks for students, and what parents should ask before enrolling.
What New Cell Phone Laws Mean for Private School Families
Learn how new cell phone laws are affecting private schools, what parents should expect, and how to evaluate school technology policies in 2026.
