| 1 | Newark Charter SchoolNewark | 17.7:1 | Other | Newark Charter School | 3,109 |
| 2 | Odyssey Charter SchoolWilmington | 14:1 | Other | Odyssey Charter School | 2,286 |
| 3 | Caesar Rodney High SchoolCamden | 16:1 | High | Caesar Rodney School District | 2,254 |
| 4 | Penn (William) High SchoolNew Castle | 16.7:1 | High | Colonial School District | 2,069 |
| 5 | Sussex Central High SchoolGeorgetown | 14.6:1 | High | Indian River School District | 2,012 |
| 6 | Cape Henlopen High SchoolLewes | 15.5:1 | High | Cape Henlopen School District | 1,889 |
| 7 | Dover High SchoolDover | 16.9:1 | High | Capital School District | 1,812 |
| 8 | Smyrna High SchoolSmyrna | 16.3:1 | High | Smyrna School District | 1,777 |
| 9 | Delcastle Technical High SchoolWilmington | 12.5:1 | High | New Castle County Vocational-Technical School District | 1,605 |
| 10 | Las Americas Aspira AcademyNewark | 16.7:1 | Other | Las Americas Aspira Academy | 1,471 |
| 11 | Christiana High SchoolNewark | 16.6:1 | Other | Christina School District | 1,425 |
| 12 | Mot Charter SchoolMiddletown | 19.5:1 | Other | MOT Charter School | 1,407 |
| 13 | Appoquinimink High SchoolMiddletown | 14.9:1 | High | Appoquinimink School District | 1,357 |
| 14 | Sussex Technical High SchoolGeorgetown | 15.1:1 | High | Sussex Technical School District | 1,341 |
| 15 | Milford Senior High SchoolMilford | 16.7:1 | High | Milford School District | 1,271 |
| 16 | Odessa High SchoolTownsend | 20.6:1 | High | Appoquinimink School District | 1,254 |
| 17 | Middletown High SchoolMiddletown | 13:1 | High | Appoquinimink School District | 1,231 |
| 18 | Polytech High SchoolWoodside | 13.2:1 | High | POLYTECH School District | 1,228 |
| 19 | St. Georges Technical High SchoolMiddletown | 15.2:1 | High | New Castle County Vocational-Technical School District | 1,198 |
| 20 | Sussex AcademyGeorgetown | 19.4:1 | Other | Sussex Academy | 1,182 |
| 21 | Conrad Schools of ScienceWilmington | 17.9:1 | Other | Red Clay Consolidated School District | 1,164 |
| 22 | Laurel Elementary SchoolLaurel | 16.6:1 | Elementary | Laurel School District | 1,145 |
| 23 | Hodgson (Paul M.) Vocational Technical High SchoolNewark | 13.8:1 | High | New Castle County Vocational-Technical School District | 1,104 |
| 24 | Mount Pleasant High SchoolWilmington | 14.1:1 | High | Brandywine School District | 1,084 |
| 25 | Indian River High SchoolDagsboro | 13.1:1 | High | Indian River School District | 1,073 |
| 26 | Wilbur (Kathleen H.) ElementaryBear | 14:1 | Elementary | Colonial School District | 1,052 |
| 27 | Newark High SchoolNewark | 16:1 | High | Christina School District | 1,039 |
| 28 | Dickinson (John) SchoolWilmington | 16:1 | Other | Red Clay Consolidated School District | 1,027 |
| 29 | Milford Central AcademyMilford | 16.1:1 | Middle | Milford School District | 1,013 |
| 30 | Smyrna Middle SchoolSmyrna | 16.3:1 | Middle | Smyrna School District | 1,011 |
| 31 | Concord High SchoolWilmington | 13.6:1 | High | Brandywine School District | 994 |
| 32 | Charter School of WilmingtonWilmington | 19.2:1 | High | Charter School of Wilmington | 977 |
| 33 | Seaford Senior High SchoolSeaford | 19.2:1 | High | Seaford School District | 960 |
| 34 | Lake Forest High SchoolFelton | 17.6:1 | High | Lake Forest School District | 951 |
| 35 | Calloway (Cab) School of the ArtsWilmington | 18.1:1 | Other | Red Clay Consolidated School District | 941 |
| 36 | Brandywine Springs SchoolWilmington | 15.4:1 | Elementary | Red Clay Consolidated School District | 941 |
| 37 | Claymont Elementary SchoolClaymont | 15.6:1 | Elementary | Brandywine School District | 937 |
| 38 | Waters (Alfred G.) Middle SchoolMiddletown | 18:1 | Middle | Appoquinimink School District | 935 |
| 39 | Mckean (Thomas) High SchoolWilmington | 13:1 | High | Red Clay Consolidated School District | 920 |
| 40 | Academia Antonia AlonsoNewark | 21.2:1 | Elementary | Academia Antonia Alonso | 910 |
| 41 | Glasgow High SchoolNewark | 19.3:1 | High | Christina School District | 908 |
| 42 | Chipman (W.T.) Middle SchoolHarrington | 17.4:1 | Middle | Lake Forest School District | 905 |
| 43 | Howard High School of TechnologyWilmington | 13.7:1 | High | New Castle County Vocational-Technical School District | 905 |
| 44 | Talley Middle SchoolWilmington | 14.1:1 | Middle | Brandywine School District | 900 |
| 45 | Brandywine High SchoolWilmington | 13:1 | High | Brandywine School District | 897 |
| 46 | Meredith (Everett) Middle SchoolMiddletown | 16.1:1 | Middle | Appoquinimink School District | 867 |
| 47 | Georgetown Middle SchoolGeorgetown | 14.3:1 | Middle | Indian River School District | 861 |
| 48 | Central Middle SchoolDover | 14.8:1 | Middle | Capital School District | 860 |
| 49 | Cantwells Bridge Middle SchoolTownsend | 18.5:1 | Middle | Appoquinimink School District | 852 |
| 50 | Bedford (Gunning) Middle SchoolNew Castle | 15.7:1 | Middle | Colonial School District | 846 |