Red Lion Christian Academy Photo - Upper School English Class

Best Delaware Private High Schools Belonging to Association of Christian Schools International (ACSI) (2025-26)

For the 2025-26 school year, there are 5 private high schools belonging to Association of Christian Schools International (ACSI) serving 2,186 students in Delaware. You can also find more schools membership associations in Delaware.
The top ranked private high schools belonging to Association of Christian Schools International (ACSI) in Delaware include Greenwood Mennonite School, Red Lion Christian Academy, and Wilmington Christian School.
The average acceptance rate is 92%, which is higher than the Delaware private high school average acceptance rate of 87%.
100% of private high schools belonging to Association of Christian Schools International (ACSI) in Delaware are religiously affiliated (most commonly Christian and Assembly of God).

Top Ranked Private High Schools Belonging to Association of Christian Schools International (ACSI) in Delaware (2025-26)

School
Location
Quick Facts
Calvary Christian Academy
(Assembly of God)
1143 E Lebanon Road
Dover, DE 19901
(302) 697-7860
Gr: PK-12 | 348 students Avg. class size: 14 students Sports: 4 | Extracurrculars: 9 Tuition & acceptance rate listed
Greenwood Mennonite School
(Mennonite)
12802 Mennonite School Road
Greenwood, DE 19950
(302) 349-4131
Gr: PK-12 | 284 students Avg. class size: 23 students Sports: 6 Tuition & acceptance rate listed
Red Lion Christian Academy
Red Lion Christian Academy Photo - ELEMENTARY PLAYGROUND
(Christian)
1390 Red Lion Road
Bear, DE 19701
(302) 834-5020
Gr: NS-12 | 942 students Avg. class size: 20 students Sports: 12 | Extracurrculars: 28 Tuition & acceptance rate listed
Wilmington Christian School
Wilmington Christian School Photo
(Christian)
(1)
825 Loveville Rd
Hockessin, DE 19707
(302) 239-2121
Gr: PK-12 | 413 students Avg. class size: 20 students Sports: 10 Tuition & acceptance rate listed
Harvest Christain Academy, Wilmington
(Christian)
2205 Lancaster Ave
Wilmington, DE 19805
(302) 276-7581
Gr: PK-12 | 199 students Avg. class size: 10 students Tuition & acceptance rate listed

Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
A Guide to Day vs. Boarding School: Which Is Right for Your Family
A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The A to Z of Private Schools 2025
The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.