Districts in Mercer County9 districts, sorted by rating
| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Princeton Public Schools | Princeton | 10/10 Excellent · 92nd pct | 3,817 | 6 | PK–12 | 3 |
| West Windsor-Plainsboro Regional School District | Plainsboro | 9/10 Excellent · 87th pct | 9,027 | 10 | PK–12 | 2 |
| Robbinsville Township School District | Windsor | 9/10 Excellent · 83rd pct | 3,073 | 3 | PK–12 | 2 |
| Hopewell Valley Regional School District | Hopewell | 9/10 Excellent · 82nd pct | 3,474 | 6 | PK–12 | 3 |
| Lawrence Township School District | Lawrence Township | 5/10 Average · 45th pct | 3,711 | 7 | PK–12 | 1 |
| East Windsor Regional School District | Hightstown | 4/10 Below Average · 36th pct | 5,138 | 6 | PK–12 | 1 |
| Hamilton Township School District | Trenton | 3/10 Below Average · 22nd pct | 12,096 | 23 | PK–12 | 5 |
| Ewing Township School District | Trenton | 2/10 Poor · 19th pct | 3,545 | 5 | PK–12 | 3 |
| Trenton City School District | Trenton | 1/10 Poor · 1st pct | 14,852 | 25 | PK–12 | 3 |
Zip Codes in Mercer County
How Mercer County compares
Together they enroll 58,733 students across 91 schools. The largest is Trenton City School District with 14,852 students. Districts here average 5.8/10, level with the New Jersey average of 5.8/10. Ratings range from 1/10 to 10/10.
School Districts in Mercer County, New Jersey
Mercer County has 9 public school districts covering 23 zip codes. The top-rated district in Mercer County is Princeton Public Schools (10/10). 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.