| 1 | SC Connections AcademyColumbia | Other | 5,955 |
| 2 | Cyber Academy of South CarolinaGreenville | Other | 3,493 |
| 3 | South Carolina Virtual Charter SchoolWest Columbia | Other | 2,350 |
| 4 | American Leadership Academy South Carolina-Lexington CampuLexington | Other | 1,728 |
| 5 | Mevers School of ExcellenceGoose Creek | Primary | 873 |
| 6 | Gray Collegiate AcademyWest Columbia | High | 869 |
| 7 | Berkeley Preparatory AcademySummerville | Primary | 786 |
| 8 | Heron Virtual Academy of South CarolinaGreenville | High | 706 |
| 9 | Lowcountry Connection AcademySummerville | Other | 697 |
| 10 | The South Carolina Preparatory AcademyAnderson | High | 692 |
| 11 | Virtus Academy of South CarolinaFlorence | Other | 686 |
| 12 | Royal Live Oaks Academy of the Arts and Sciences Charter SchHardeeville | Other | 666 |
| 13 | Oceanside Collegiate AcademyMount Pleasant | High | 653 |
| 14 | Legion Collegiate AcademyRock Hill | High | 602 |
| 15 | Lowcountry Leadership Charter SchoolMeggett | Other | 537 |
| 16 | Cherokee Charter AcademyGaffney | Primary | 516 |
| 17 | Brashier Middle College Charter HighSimpsonville | High | 484 |
| 18 | Odyssey Online LearningChapin | High | 452 |
| 19 | Clear Dot Charter SchoolColumbia | Other | 418 |
| 20 | Thornwell Charter SchoolClinton | Other | 371 |
| 21 | Libertas Academy-Boiling SpringsSimpsonville | Primary | 371 |
| 22 | Greenwood Charter AcademyGreenwood | Primary | 331 |
| 23 | Belton Preparatory AcademyBelton | Primary | 287 |
| 24 | Midlands STEM InstituteWinnsboro | Other | 247 |
| 25 | Calhoun Falls Charter SchoolCalhoun Falls | High | 164 |
| 26 | The Montessori School of CamdenCamden | Primary | 132 |
| 27 | Summit Classical SchoolClinton | Primary | 80 |
| 28 | Gates SchoolMt. Pleasant | -- | 0 |