| 1 | Red Clay Consolidated School District | Wilmington | 14,546 |
| 2 | Christina School District | Newark | 13,076 |
| 3 | Appoquinimink School District | Odessa | 12,945 |
| 4 | Indian River School District | Selbyville | 10,786 |
| 5 | Brandywine School District | Wilmington | 10,350 |
| 6 | Colonial School District | New Castle | 8,778 |
| 7 | Caesar Rodney School District | Wyoming | 8,259 |
| 8 | Cape Henlopen School District | Lewes | 6,587 |
| 9 | Capital School District | Dover | 6,547 |
| 10 | Smyrna School District | Smyrna | 6,010 |
| 11 | New Castle County Vocational-Technical School District | Wilmington | 4,782 |
| 12 | Milford School District | Milford | 4,595 |
| 13 | Lake Forest School District | Felton | 3,679 |
| 14 | Seaford School District | Seaford | 3,417 |
| 15 | Newark Charter School | Newark | 3,047 |
| 16 | Laurel School District | Laurel | 2,529 |
| 17 | Woodbridge School District | Bridgeville | 2,508 |
| 18 | Odyssey Charter School | Wilmington | 2,192 |
| 19 | Delmar School District | Delmar | 1,451 |
| 20 | Las Americas Aspira Academy | Newark | 1,444 |
| 21 | MOT Charter School | Middletown | 1,396 |
| 22 | Sussex Technical School District | Georgetown | 1,323 |
| 23 | POLYTECH School District | Woodside | 1,225 |
| 24 | Sussex Academy | Georgetown | 1,158 |
| 25 | Charter School of Wilmington | Wilmington | 971 |
| 26 | Academia Antonia Alonso | Newark | 805 |
| 27 | Charter School of New Castle | New Castle | 764 |
| 28 | Providence Creek Academy Charter School | Clayton | 741 |
| 29 | First State Montessori Academy | Wilmington | 643 |
| 30 | Edison (Thomas A.) Charter School | Wilmington | 601 |
| 31 | Kuumba Academy Charter School | Wilmington | 599 |
| 32 | Delaware Military Academy | Wilmington | 567 |
| 33 | Early College High School at Del State | Dover | 533 |
| 34 | East Side Charter School | Wilmington | 446 |
| 35 | Sussex Montessori School | Seaford | 439 |
| 36 | First State Military Academy | Clayton | 416 |
| 37 | Academy of Dover Charter School | Dover | 415 |
| 38 | Freire Charter School Wilmington | Wilmington | 411 |
| 39 | Campus Community School | Dover | 403 |
| 40 | Gateway Charter School | Wilmington | 191 |
| 41 | Great Oaks Charter School | Wilmington | 145 |
| 42 | Positive Outcomes Charter School | Camden | 122 |