| 1 | Sussex Consortium Lewes | 439 | Other | Cape Henlopen School District | -66% | 4.8:1 |
| 2 | Brennen School (the) Newark | 419 | Other | Christina School District | -66% | 4.8:1 |
| 3 | John S. Charlton School Camden | 424 | Other | Caesar Rodney School District | -57% | 6.1:1 |
| 4 | Ennis (Howard T.) School Georgetown | 340 | Other | Indian River School District | -55% | 6.3:1 |
| 5 | Kent County Secondary Ilc Dover | 107 | Other | Capital School District | -52% | 6.8:1 |
| 6 | The Colwyck Center New Castle | 222 | Other | Colonial School District | -48% | 7.4:1 |
| 7 | Meadowood Program Newark | 119 | Other | Red Clay Consolidated School District | -47% | 7.5:1 |
| 8 | Positive Outcomes Charter School Camden | 119 | Other | Positive Outcomes Charter School | -45% | 7.7:1 |
| 9 | Gateway Charter School Wilmington | 211 | Elementary | Gateway Charter School | -45% | 7.8:1 |
| 10 | Stubbs Early Education Center Wilmington | 148 | Other | Christina School District | -39% | 8.6:1 |
| 11 | Warner Elementary School Wilmington | 395 | Elementary | Red Clay Consolidated School District | -38% | 8.8:1 |
| 12 | Lewis (William C.) Dual Language Elementary School Wilmington | 347 | Elementary | Red Clay Consolidated School District | -38% | 8.8:1 |
| 13 | The Bayard School Wilmington | 571 | Elementary | Christina School District | -35% | 9.2:1 |
| 14 | Richardson Park Elementary School Wilmington | 522 | Elementary | Red Clay Consolidated School District | -34% | 9.3:1 |
| 15 | Kent County Community School Dover | 274 | Other | Capital School District | -33% | 9.5:1 |
| 16 | Brookside Elementary School Newark | 260 | Elementary | Christina School District | -31% | 9.7:1 |
| 17 | Brick Mill Early Childhood Center Middletown | 280 | Other | Appoquinimink School District | -30% | 9.9:1 |
| 18 | Mote (Anna P.) Elementary School Wilmington | 310 | Elementary | Red Clay Consolidated School District | -29% | 10:1 |
| 19 | Harlan (David W. ) Elementary School Wilmington | 322 | Other | Brandywine School District | -28% | 10.2:1 |
| 20 | Booker T. Washington Elementary School Dover | 314 | Elementary | Capital School District | -26% | 10.4:1 |
| 21 | Marbrook Elementary School Wilmington | 465 | Elementary | Red Clay Consolidated School District | -26% | 10.5:1 |
| 22 | North Laurel Early Learning Academy Laurel | 273 | Other | Laurel School District | -25% | 10.6:1 |
| 23 | Red Clay Early Years Program Wilmington | 335 | Other | Red Clay Consolidated School District | -24% | 10.7:1 |
| 24 | Major George S. Welch Elementary School Dover | 261 | Elementary | Caesar Rodney School District | -24% | 10.7:1 |
| 25 | Gallaher (Robert S.) Elementary School Newark | 469 | Elementary | Christina School District | -23% | 10.8:1 |
| 26 | Brader (Henry M.) Elementary School Newark | 324 | Elementary | Christina School District | -23% | 10.8:1 |
| 27 | Kuumba Academy Charter School Wilmington | 594 | Elementary | Kuumba Academy Charter School | -21% | 11.1:1 |
| 28 | East Side Charter School Wilmington | 434 | Elementary | East Side Charter School | -21% | 11.2:1 |
| 29 | Leasure (May B.) Elementary School Newark | 316 | Elementary | Christina School District | -21% | 11.2:1 |
| 30 | Christina Early Education Center Newark | 362 | Other | Christina School District | -20% | 11.3:1 |
| 31 | Mcvey (Joseph M.) Elementary School Newark | 319 | Elementary | Christina School District | -19% | 11.4:1 |
| 32 | The Bancroft School Wilmington | 616 | Other | Christina School District | -18% | 11.6:1 |
| 33 | Maclary (R. Elisabeth) Elementary School Newark | 244 | Elementary | Christina School District | -18% | 11.6:1 |
| 34 | Morris (Evelyn I.) Early Childhood Lincoln | 438 | Other | Milford School District | -17% | 11.7:1 |
| 35 | Eisenberg (Harry O.) Elementary School New Castle | 436 | Elementary | Colonial School District | -17% | 11.7:1 |
| 36 | Forwood Elementary School Wilmington | 384 | Elementary | Brandywine School District | -17% | 11.7:1 |
| 37 | Hartly Elementary School Hartly | 240 | Elementary | Capital School District | -17% | 11.7:1 |
| 38 | Lake Forest South Elementary School Harrington | 407 | Elementary | Lake Forest School District | -16% | 11.8:1 |
| 39 | Pleasantville Elementary School New Castle | 389 | Elementary | Colonial School District | -16% | 11.8:1 |
| 40 | West Park Place Elementary School Newark | 350 | Elementary | Christina School District | -16% | 11.8:1 |
| 41 | East Dover Elementary School Dover | 331 | Elementary | Capital School District | -16% | 11.8:1 |
| 42 | Southern Elementary School New Castle | 729 | Elementary | Colonial School District | -16% | 11.9:1 |
| 43 | Rehoboth Elementary School Rehoboth Beach | 557 | Elementary | Cape Henlopen School District | -16% | 11.9:1 |
| 44 | Skyline Middle School Wilmington | 408 | Middle | Red Clay Consolidated School District | -16% | 11.9:1 |
| 45 | Gauger-Cobbs Middle School Newark | 681 | Middle | Christina School District | -15% | 12:1 |
| 46 | North Smyrna Elementary School Smyrna | 557 | Other | Smyrna School District | -15% | 12:1 |
| 47 | Baltz (Austin D.) Elementary School Wilmington | 549 | Elementary | Red Clay Consolidated School District | -15% | 12:1 |
| 48 | Downes (John R.) Elementary School Newark | 346 | Elementary | Christina School District | -15% | 12:1 |
| 49 | Dupont (Pierre S.) Middle School Wilmington | 730 | Middle | Brandywine School District | -14% | 12.1:1 |
| 50 | Heritage Elementary School Wilmington | 492 | Elementary | Red Clay Consolidated School District | -13% | 12.2:1 |