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 St. Elizabeth School, The Tatnall School, and Salesianum 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
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