| Castle Hills Elementary School | K - 5 | 710 | 15.4 | New Castle, 19720 |
| Colwyck Elementary School | K - 5 | 475 | 15.8 | New Castle, 19720 |
| Downie (Carrie) Elementary School | PK - 5 | 438 | 15.6 | New Castle, 19720 |
| Eisenberg (Harry O.) Elementary School | K - 5 | 472 | 13.9 | New Castle, 19720 |
| Mccullough (Calvin R.) Elementary School | PK - 5 | 882 | 14.5 | New Castle, 19720 |
| Pleasantville Elementary School | K - 5 | 541 | 15.5 | New Castle, 19720 |
| Southern Elementary School | K - 5 | 1,107 | 18.4 | New Castle, 19720 |
| Wilmington Manor Elementary School | K - 5 | 405 | 15.0 | New Castle, 19720 |
| Bedford (Gunning) Middle School | 6 - 8 | 1,252 | 19.3 | New Castle, 19720 |
| New Castle Middle School | 6 - 8 | 557 | 18.0 | New Castle, 19720 |
| Read (George) Middle School | 6 - 8 | 1,133 | 18.0 | New Castle, 19720 |
| Baylor Womens Correctional Institution | 9 - 12 | 0 | | New Castle, 19720 |
| Multiple Alternative Program | 9 - 12 | 72 | | New Castle, 19720 |
| Penn (William) High School | 9 - 12 | 2,331 | 18.3 | New Castle, 19720 |
| Leach (John G.) School | PK - 12 | 103 | 5.3 | New Castle, 19720 |
| Northeast Treatment Center | K - 12 | 0 | | New Castle, 19720 |
| Terry Childrens Psychiatric Center | K - 12 | 0 | | New Castle, 19720 |
| Family Foundations Academy | | | | New Castle, 19720 |
| Pencader Business And Finance Charter High School | | | | New Castle, 19720 |
| Wrangle Hill Elementary School | | | | New Castle, 19720 |
