Cathedral Academy Photo - Classroom sample

Best Charleston County Private High Schools (2025-26)

For the 2025-26 school year, there are 12 private high schools serving 4,550 students in Charleston County, SC.
The top ranked private high schools in Charleston County, SC include Ashley Hall, Charleston Collegiate School, and Porter-Gaud School.
The average tuition cost is $21,621, which is higher than the South Carolina private high school average tuition cost of $10,363.
67% of private high schools in Charleston County, SC are religiously affiliated (most commonly Christian and Baptist).

Top Ranked Charleston County Private High Schools (2025-26)

School
Location
Quick Facts
Ashley Hall
Ashley Hall Photo
All-girls
(8)
172 Rutledge Avenue
Charleston, SC 29403
(843) 722-4088
Gr: PK-12 | 728 students Avg. class size: 15 students Sports: 12 Tuition & acceptance rate listed
Cathedral Academy
Cathedral Academy Photo - Classroom sample
(Christian)
(2)
3790 Ashley Phosphate Road
North Charleston, SC 29418
(843) 760-1192
Gr: PK-12 | 385 students Avg. class size: 24 students Sports: 8 | Extracurrculars: 5 Tuition & acceptance rate listed
2024 Academy Rd
Johns Island, SC 29455
(843) 559-5506
Gr: PK-12 | 342 students Avg. class size: 14 students Sports: 12 Tuition & acceptance rate listed
First Baptist School
(Baptist)
(2)
48 Meeting St
Charleston, SC 29401
(843) 722-6646
Gr: PK-12 | 497 students Tuition listed
James Island Christian School
James Island Christian School Photo - Welcome to JICS!
(Christian)
(5)
15 Crosscreek Drive
Charleston, SC 29412
(843) 795-1762
Gr: PK-10 | 282 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 4 Tuition listed
Northside Christian School
(Baptist)
7800 Northside Dr
North Charleston, SC 29420
(843) 797-2690
Gr: NS-12 | 342 students Avg. class size: 13 students Sports: 6 | Extracurrculars: 4 Tuition & acceptance rate listed
Palmetto Christian Academy
Palmetto Christian Academy Photo
(Christian)
(1)
361 Egypt Road
Mount Pleasant, SC 29464
(843) 881-9967
Gr: PK-12 | 732 students Avg. class size: 15 students Tuition listed
Porter-Gaud School
Porter-Gaud School Photo - From the earliest grades to the Upper School, Porter-Gaud students learn from faculty members whose love of their subject areas is infectious.
(Episcopal)
300 Albemarle Rd
Charleston, SC 29407
(843) 556-3620
Gr: 1-12 | 1,059 student Sports: 16 | Extracurrculars: 10 Tuition listed
University School of The Lowcountry
University School of The Lowcountry Photo - Visiting Shem Creek is a favorite activity for USL students.
Special Program Emphasis
(9)
690 Coleman Blvd.
Mount Pleasant, SC 29464
(843) 884-0902
Gr: 3-12 | 78 students Avg. class size: 10 students Extracurrculars: 7 Tuition & acceptance rate listed
Harvest Time International Academy
(Christian)
227 Huger St
Charleston, SC 29403
(843) 647-5911
Gr: 6-12 | 7 students Avg. class size: 15 students Tuition listed
Riverpointe Christian Academy
Alternative School (Christian)
8310 Dorchester Road
North Charleston, SC 29418
(843) 552-0624
Gr: K-10 | 34 students Avg. class size: 10 students Sports: 4 | Extracurrculars: 9 Acceptance rate listed
Trident Academy
Trident Academy Photo - Trident's teachers attend to each student's individual learning needs at their pace and their level in order to build a strong foundation for life.
Special Education School
1455 Wakendaw Rd
Mount Pleasant, SC 29464
(843) 884-7046
Gr: K-12 | 64 students Avg. class size: 6 students Sports: 3 | Extracurrculars: 6 Tuition & acceptance rate listed
[+] Show Closed Private Schools in Charleston County, South Carolina

Charleston County Private Schools (Closed)

School
Location
Quick Facts
1011 Old Cemetery Road
Mc Clellanville, SC 29458
(843) 887-3323
Gr: NS-12 | 34 students
1941 Bees Ferry Rd
Charleston, SC 29414
(843) 225-2892
Gr: NS-11 | 32 students Avg. class size: 7 students
4870 Piedmont Avenue
Charleston, SC 29406
(843) 554-0535
Gr: 5-8
250 Ponsbury Rd
Mount Pleasant, SC 29464
(843) 388-5264
Gr: NS-PK
Palmetto Academy (Closed 2010)
Special Education School (Christian)
913 Wappoo Rd
Charleston, SC 29407
Gr: 9-12 | 14 students
Remount Baptist Daycare (Closed 2025)
Daycare / Preschool (Baptist)
1520 Remount Road
Charleston, SC 29406
(843) 747-7403
Gr: PK-K | 108 students

Frequently Asked Questions

What are the top ranked private high schools in Charleston County, SC?
The top ranked private high schools in Charleston County, SC include Ashley Hall, Charleston Collegiate School, and Porter-Gaud School.
How many private high schools are located in Charleston County?
12 private high schools are located in Charleston County.
How much do private high schools cost in Charleston County?
The average tuition cost is $21,621, which is higher than the South Carolina private school average tuition cost of $10,363.
How diverse are private high schools in Charleston County?
Charleston County private high schools are approximately 12% minority students, which is lower than the South Carolina private school average of 14%.
What percentage of private high schools are religiously affiliated in Charleston County?
67% of private high schools in Charleston County are religiously affiliated (most commonly Christian and Baptist).

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