Districts in New Castle County5 districts, sorted by rating
| District | City | Rating | Zip Codes |
|---|---|---|---|
| Appoquinimink School District | Middletown | 10/10 Excellent · 94th pct | 3 |
| Red Clay Consolidated School District | Newark | 8/10 Good · 75th pct | 11 |
| Brandywine School District | Claymont | 7/10 Good · 62nd pct | 5 |
| Christina School District | Newark | 4/10 Below Average · 31st pct | 4 |
| Colonial School District | Bear | 1/10 Poor · 6th pct | 6 |
Zip Codes in New Castle County
School Districts in New Castle County, Delaware
New Castle County has 5 public school districts covering 29 zip codes. The top-rated district in New Castle County is Appoquinimink School District (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts), ranked against all districts in Delaware. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.