| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Appoquinimink School District | Middletown | 10/10 Excellent · 91st pct | 12,804 | 20 | PK–12 | 3 |
| Red Clay Consolidated School District | Newark | 8/10 Good · 72nd pct | 14,771 | 28 | PK–12 | 11 |
| Brandywine School District | Claymont | 6/10 Average · 59th pct | 10,367 | 17 | PK–12 | 5 |
| Christina School District | Newark | 3/10 Below Average · 28th pct | 13,092 | 28 | PK–12 | 4 |
| Colonial School District | Bear | 1/10 Poor · 3rd pct | 9,132 | 15 | PK–12 | 6 |
How New Castle County compares
Together they enroll 60,166 students across 108 schools. The largest is Red Clay Consolidated School District with 14,771 students. Districts here average 5.6/10, above the Delaware average of 5.5/10. Ratings range from 1/10 to 10/10.
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.