| 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 |
| West Windsor-Plainsboro Regional School District | Plainsboro | 9/10 Excellent · 87th pct | 9,027 | 10 | PK–12 | 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 | Old Bridge | 7/10 Good · 64th pct | 8,096 | 14 | PK–12 | 2 |
| 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 |
| Dunellen Borough School District | Dunellen | 2/10 Poor · 19th pct | 1,305 | 3 | PK–12 | 0 |
| Jamesburg Borough School District | JAMESBURG | 2/10 Poor · 16th pct | 674 | 2 | PK–8 | 0 |
| South Amboy City School District | South Amboy | 2/10 Poor · 15th pct | 1,183 | 2 | PK–12 | 0 |
| 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 132,580 students across 194 schools. The largest is Edison Township School District with 16,807 students. Districts here average 5.0/10, below the New Jersey average of 5.7/10. Ratings range from 1/10 to 9/10.
School Districts in Middlesex County, New Jersey
Middlesex County has 24 public school districts covering 35 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 (NJSLA 2024–25), 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.
Frequently Asked Questions
How many school districts are in Middlesex County, NJ?
24 school districts serve zip codes in Middlesex County, NJ. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Middlesex County, NJ?
Of the districts serving Middlesex County, Metuchen Borough School District has the highest rating on this site at 9/10. That places it in the 88th percentile among New Jersey school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on New Jersey reading and math assessments, ranked against other districts in New Jersey and converted to a 1–10 scale. Percentiles compare districts within New Jersey only, never across state lines.