Salesianum School Photo

Top 5 Best Delaware Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools (2025)

For the 2025 school year, there are 7 private high schools belonging to Middle States Association of Colleges and Secondary Schools serving 4,403 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 Salesianum School, Tower Hill School, and St. Elizabeth School.
The average acceptance rate is 81%, which is lower than the Delaware private high school average acceptance rate of 88%.
71% of private high schools belonging to Middle States Association of Colleges and Secondary Schools in Delaware are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools in Delaware (2025)

School
Location
Grades
Students
Red Lion Christian Academy
Red Lion Christian Academy Photo - ELEMENTARY PLAYGROUND
(Christian)
1390 Red Lion Road
Bear, DE 19701
(302) 834-5020
Grades: NS-12
| 942 students
St. Elizabeth School
St. Elizabeth School Photo
(Catholic)
1500 Cedar St
Wilmington, DE 19805
(302) 656-3369
Grades: PK-12
| 433 students
St. Mark's High School
St. Mark's High School Photo
(Catholic)
(10)
2501 Pike Creek Road
Wilmington, DE 19808
(302) 757-8704
Grades: 9-12
| 716 students
Salesianum School
Salesianum School Photo
All-boys (Catholic)
(1)
1801 N Broom Street
Wilmington, DE 19802
(302) 654-2495
Grades: 9-12
| 930 students
The Tatnall School
The Tatnall School Photo - Tatnall's 110-acre campus is located just west of Wilmington in Greenville, Delaware. Housing a National Wildlife Federation-accredited schoolyard habitat, five outdoor classrooms and bordering the Downs Nature Conservancy, the spacious campus provides expansive playing fields and opportunities for outdoor environmental study.
(13)
1501 Barley Mill Road
Wilmington, DE 19807
(302) 892-4296
Grades: NS-12
| 486 students
Tower Hill School
Tower Hill School Photo - Tower Hill School resides on a 44-acre campus with state-of- the-art athletic facilities and impressive academic and arts areas.
2813 W 17th Street
Wilmington, DE 19806
(302) 575-0550
Grades: NS-12
| 860 students
Towle Institute
Alternative School (Christian)
199 Polly Drummond Hill Road
Newark, DE 19711
(302) 993-1408
Grades: 4-12
| 36 students

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