| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Metuchen Borough School District | Metuchen | 9/10 Excellent · 88th pct | 2,302 | 4 | PK–12 | 1 |
| Cranbury Township School District | Cranbury | 9/10 Excellent · 87th pct | 453 | 1 | PK–8 | 1 |
| Monroe Township School District | Monroe Township | 9/10 Excellent · 81st pct | 6,948 | 8 | PK–12 | 1 |
| South Brunswick Township School District | Dayton | 8/10 Good · 78th pct | 7,950 | 10 | PK–12 | 3 |
| East Brunswick Township School District | East Brunswick | 8/10 Good · 75th pct | 8,159 | 11 | PK–12 | 1 |
| Edison Township School District | Edison | 8/10 Good · 71st pct | 16,807 | 19 | PK–12 | 3 |
| Old Bridge Township School District | Keyport | 7/10 Good · 64th pct | 8,096 | 14 | K–12 | 4 |
| Piscataway Township School District | Piscataway | 6/10 Average · 54th pct | 7,354 | 11 | PK–12 | 1 |
| Milltown Borough School District | Milltown | 5/10 Average · 47th pct | 833 | 2 | PK–8 | 1 |
| Sayreville Borough School District | Parlin | 5/10 Average · 46th pct | 6,407 | 9 | PK–12 | 2 |
| South Plainfield Borough School District | South Plainfield | 5/10 Average · 44th pct | 3,551 | 7 | PK–12 | 1 |
| Highland Park Borough School District | Highland Park | 4/10 Below Average · 36th pct | 1,598 | 4 | PK–12 | 1 |
| Woodbridge Township School District | Avenel | 4/10 Below Average · 32nd pct | 13,836 | 25 | PK–12 | 8 |
| Middlesex Borough School District | Middlesex | 4/10 Below Average · 31st pct | 2,044 | 6 | PK–12 | 1 |
| Spotswood Borough School District | Helmetta | 4/10 Below Average · 30th pct | 1,660 | 4 | PK–12 | 2 |
| Carteret Borough School District | Carteret | 3/10 Below Average · 23rd pct | 3,935 | 6 | PK–12 | 1 |
| North Brunswick Township School District | North Brunswick | 3/10 Below Average · 22nd pct | 5,822 | 8 | PK–12 | 1 |
| South River Borough School District | South River | 2/10 Poor · 14th pct | 2,462 | 4 | PK–12 | 1 |
| Perth Amboy City School District | Perth Amboy | 1/10 Poor · 8th pct | 10,484 | 12 | PK–12 | 1 |
| New Brunswick City School District | New Brunswick | 1/10 Poor · 5th pct | 9,690 | 12 | PK–12 | 1 |
How Middlesex County compares
Together they enroll 120,391 students across 177 schools. The largest is Edison Township School District with 16,807 students. Districts here average 5.2/10, below the New Jersey average of 5.8/10. Ratings range from 1/10 to 9/10.
School Districts in Middlesex County, New Jersey
Middlesex County has 20 public school districts covering 36 zip codes. The top-rated district in Middlesex County is Metuchen Borough School District (9/10). 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 New Jersey. 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.