| 1 | Brennen School (The) | Newark | Christina School District | Combined | 419 | 5.0:1 |
| 2 | Sussex Consortium | Lewes | Cape Henlopen School District | Combined | 439 | 5.1:1 |
| 3 | Ennis (Howard T.) School | Georgetown | Indian River School District | Combined | 340 | 6.3:1 |
| 4 | The Colwyck Center | New Castle | Colonial School District | Elementary | 222 | 8.9:1 |
| 5 | Major George S. Welch Elementary School | Dover | Caesar Rodney School District | Elementary | 261 | 9.0:1 |
| 6 | Gateway Charter School | Wilmington | Gateway Charter School | Elementary | 211 | 9.2:1 |
| 7 | John S. Charlton School | Camden | Caesar Rodney School District | Combined | 424 | 9.4:1 |
| 8 | Harlan (David W. ) Elementary School | Wilmington | Brandywine School District | Elementary | 322 | 9.5:1 |
| 9 | Gallaher (Robert S.) Elementary School | Newark | Christina School District | Elementary | 469 | 9.6:1 |
| 10 | Brick Mill Early Childhood Center | Middletown | Appoquinimink School District | Elementary | 280 | 9.7:1 |
| 11 | Warner Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 395 | 9.9:1 |
| 12 | Richardson Park Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 522 | 9.9:1 |
| 13 | Brookside Elementary School | Newark | Christina School District | Elementary | 260 | 10.0:1 |
| 14 | Booker T. Washington Elementary School | Dover | Capital School District | Elementary | 314 | 10.1:1 |
| 15 | Shortlidge (Evan G.) Academy | Wilmington | Red Clay Consolidated School District | Elementary | 340 | 10.3:1 |
| 16 | East Side Charter School | Wilmington | East Side Charter School | Elementary | 434 | 10.3:1 |
| 17 | Smith (Jennie E.) Elementary School | Newark | Christina School District | Elementary | 413 | 10.3:1 |
| 18 | Leasure (May B.) Elementary School | Newark | Christina School District | Elementary | 316 | 10.5:1 |
| 19 | Maclary (R. Elisabeth) Elementary School | Newark | Christina School District | Elementary | 244 | 10.6:1 |
| 20 | Beacon Middle School | Lewes | Cape Henlopen School District | Middle | 427 | 10.7:1 |
| 21 | Gauger-Cobbs Middle School | Newark | Christina School District | Middle | 681 | 11.0:1 |
| 22 | Hartly Elementary School | Hartly | Capital School District | Elementary | 240 | 11.0:1 |
| 23 | Mote (Anna P.) Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 310 | 11.0:1 |
| 24 | Downes (John R.) Elementary School | Newark | Christina School District | Elementary | 346 | 11.2:1 |
| 25 | McVey (Joseph M.) Elementary School | Newark | Christina School District | Elementary | 319 | 11.4:1 |
| 26 | The Bayard School | Wilmington | Christina School District | Elementary | 571 | 11.4:1 |
| 27 | Skyline Middle School | Wilmington | Red Clay Consolidated School District | Middle | 408 | 11.7:1 |
| 28 | Mariner Middle School | Milton | Cape Henlopen School District | Middle | 552 | 11.7:1 |
| 29 | Showell (Phillip C.) Elementary School | Selbyville | Indian River School District | Elementary | 297 | 11.9:1 |
| 30 | Shue-Medill Middle School | Newark | Christina School District | Middle | 763 | 11.9:1 |
| 31 | Lewis (William C.) Dual Language Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 347 | 12.0:1 |
| 32 | Brader (Henry M.) Elementary School | Newark | Christina School District | Elementary | 324 | 12.0:1 |
| 33 | Clayton (John M.) Elementary School | Frankford | Indian River School District | Elementary | 446 | 12.1:1 |
| 34 | Marbrook Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 465 | 12.1:1 |
| 35 | Castle Hills Elementary School | New Castle | Colonial School District | Elementary | 462 | 12.2:1 |
| 36 | duPont (Pierre S.) Middle School | Wilmington | Brandywine School District | Middle | 730 | 12.2:1 |
| 37 | Allen Frear Elementary School | Camden | Caesar Rodney School District | Elementary | 504 | 12.3:1 |
| 38 | Woodbridge Early Childhood Education Center | Greenwood | Woodbridge School District | Elementary | 609 | 12.4:1 |
| 39 | Heritage Elementary School | Wilmington | Red Clay Consolidated School District | Elementary | 492 | 12.5:1 |
| 40 | Christina Early Education Center | Newark | Christina School District | Elementary | 362 | 12.5:1 |
| 41 | Kirk (George V.) Middle School | Newark | Christina School District | Middle | 612 | 12.5:1 |
| 42 | Morris (Evelyn I.) Early Childhood | Lincoln | Milford School District | Elementary | 438 | 12.5:1 |
| 43 | Southern Delaware School of the Arts | Selbyville | Indian River School District | Elementary | 404 | 12.6:1 |
| 44 | H. O. Brittingham Elementary School | Milton | Cape Henlopen School District | Elementary | 506 | 12.7:1 |
| 45 | Odyssey Charter School | Wilmington | Odyssey Charter School | Combined | 2,286 | 12.7:1 |
| 46 | Southern Elementary School | New Castle | Colonial School District | Elementary | 729 | 12.8:1 |
| 47 | Carrcroft Elementary School | Wilmington | Brandywine School District | Elementary | 475 | 12.8:1 |
| 48 | Red Clay Early Years Program | Wilmington | Red Clay Consolidated School District | Elementary | 335 | 12.9:1 |
| 49 | Oberle (William) Elementary School | Bear | Christina School District | Elementary | 512 | 12.9:1 |
| 50 | Wilson (Etta J.) Elementary School | Newark | Christina School District | Elementary | 271 | 12.9:1 |