| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Carlisle School District | Carlisle | 10/10 Excellent · 99th pct | 606 | 1 | PK–8 | 1 |
| Hopkinton School District | Hopkinton | 10/10 Excellent · 99th pct | 4,196 | 6 | PK–12 | 1 |
| Lexington Public Schools | Lexington | 10/10 Excellent · 99th pct | 6,938 | 10 | PK–12 | 2 |
| Lincoln-Sudbury School District | Hanscom Afb | 10/10 Excellent · 99th pct | 1,533 | 1 | 9–12 | 2 |
| Weston Public Schools | Weston | 10/10 Excellent · 99th pct | 2,022 | 5 | PK–12 | 1 |
| Wayland School District | Wayland | 10/10 Excellent · 98th pct | 2,783 | 6 | PK–12 | 1 |
| Winchester School District | Winchester | 10/10 Excellent · 97th pct | 4,392 | 7 | PK–12 | 1 |
| Sudbury School District | Sudbury | 10/10 Excellent · 96th pct | 2,550 | 5 | PK–8 | 0 |
| Concord School District | Concord | 10/10 Excellent · 95th pct | 1,962 | 4 | PK–8 | 1 |
| Dover-Sherborn School District | Sherborn | 10/10 Excellent · 95th pct | 1,180 | 2 | 6–12 | 1 |
| North Reading School District | North Reading | 10/10 Excellent · 94th pct | 2,383 | 5 | PK–12 | 1 |
| Arlington School District | Arlington | 10/10 Excellent · 93rd pct | 6,047 | 11 | PK–12 | 2 |
| Belmont Public Schools | Belmont | 10/10 Excellent · 93rd pct | 4,507 | 6 | PK–12 | 1 |
| Sherborn School District | Dover | 10/10 Excellent · 92nd pct | 403 | 1 | PK–5 | 0 |
| Acton-Boxborough Regional School District | Acton | 10/10 Excellent · 91st pct | 5,197 | 9 | PK–12 | 3 |
| Bedford School District | Bedford | 10/10 Excellent · 90th pct | 2,575 | 4 | PK–12 | 1 |
| Newton School District | Newton | 10/10 Excellent · 90th pct | 11,990 | 22 | PK–12 | 9 |
| Westford School District | Westford | 9/10 Excellent · 89th pct | 4,762 | 9 | PK–12 | 1 |
| Natick Public Schools | Natick | 9/10 Excellent · 88th pct | 5,410 | 8 | PK–12 | 1 |
| Reading School District | Reading | 9/10 Excellent · 88th pct | 3,899 | 9 | PK–12 | 1 |
| Littleton School District | Littleton | 9/10 Excellent · 85th pct | 1,711 | 4 | PK–12 | 1 |
| Melrose School District | Melrose | 9/10 Excellent · 84th pct | 3,895 | 8 | PK–12 | 1 |
| Nashoba School District | Stow | 9/10 Excellent · 82nd pct | 3,065 | 6 | PK–12 | 1 |
| Groton-Dunstable School District | Groton | 9/10 Excellent · 81st pct | 2,371 | 5 | PK–12 | 2 |
| Holliston School District | Holliston | 8/10 Good · 79th pct | 2,810 | 4 | PK–12 | 1 |
| Cambridge Public Schools | Cambridge | 8/10 Good · 77th pct | 6,746 | 17 | PK–12 | 5 |
| Lincoln School District | Lincoln | 8/10 Good · 76th pct | 1,032 | 3 | PK–8 | 1 |
| Ashland School District | Ashland | 8/10 Good · 73rd pct | 2,925 | 5 | PK–12 | 1 |
| Wakefield School District | Wakefield | 8/10 Good · 73rd pct | 3,335 | 7 | PK–12 | 1 |
| Chelmsford School District | Chelmsford | 8/10 Good · 71st pct | 5,114 | 8 | PK–12 | 2 |
| Burlington School District | Burlington | 8/10 Good · 70th pct | 3,486 | 6 | PK–12 | 1 |
| Wilmington School District | Wilmington | 7/10 Good · 65th pct | 2,840 | 7 | PK–12 | 1 |
| Watertown School District | Watertown | 7/10 Good · 60th pct | 2,699 | 5 | PK–12 | 1 |
| Billerica School District | Billerica | 6/10 Average · 52nd pct | 4,882 | 8 | PK–12 | 2 |
| Stoneham School District | Stoneham | 6/10 Average · 50th pct | 2,309 | 5 | PK–12 | 1 |
| Tewksbury School District | Tewksbury | 5/10 Average · 48th pct | 3,278 | 7 | PK–12 | 1 |
| Dracut School District | Dracut | 5/10 Average · 42nd pct | 3,626 | 6 | PK–12 | 1 |
| Waltham School District | Waltham | 5/10 Average · 42nd pct | 5,703 | 10 | PK–12 | 3 |
| Ayer-Shirley School District | Ayer | 5/10 Average · 41st pct | 1,670 | 4 | PK–12 | 2 |
| Tyngsborough School District | Tyngsboro | 5/10 Average · 40th pct | 1,590 | 3 | PK–12 | 1 |
| North Middlesex School District | Ashby | 4/10 Below Average · 39th pct | 3,074 | 7 | PK–12 | 4 |
| Medford School District | Medford | 4/10 Below Average · 37th pct | 4,201 | 8 | PK–12 | 1 |
| Maynard School District | Maynard | 4/10 Below Average · 34th pct | 1,210 | 3 | PK–12 | 1 |
| Somerville Public Schools | Somerville | 4/10 Below Average · 33rd pct | 4,884 | 11 | PK–12 | 3 |
| Malden School District | Malden | 3/10 Below Average · 29th pct | 6,370 | 7 | PK–12 | 1 |
| Woburn School District | Woburn | 3/10 Below Average · 28th pct | 4,353 | 10 | PK–12 | 1 |
| Hudson School District | Hudson | 3/10 Below Average · 25th pct | 2,357 | 5 | PK–12 | 1 |
| Lowell School District | Lowell | 2/10 Poor · 19th pct | 14,228 | 27 | PK–12 | 4 |
| Marlborough School District | Marlborough | 2/10 Poor · 10th pct | 4,812 | 7 | PK–12 | 1 |
| Framingham School District | Framingham | 1/10 Poor · 8th pct | 9,469 | 14 | PK–12 | 2 |
| Everett School District | Everett | 1/10 Poor · 5th pct | 7,377 | 10 | PK–12 | 1 |
How Middlesex County compares
Together they enroll 202,757 students across 368 schools. The largest is Lowell School District with 14,228 students. Districts here average 7.3/10, above the Massachusetts average of 5.6/10. Ratings range from 1/10 to 10/10.
School Districts in Middlesex County, Massachusetts
Middlesex County has 51 public school districts covering 81 zip codes. The top-rated district in Middlesex County is Carlisle School District (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (MCAS 2024–25), ranked against all districts in Massachusetts. 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, MA?
51 school districts serve zip codes in Middlesex County, MA. 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, MA?
Of the districts serving Middlesex County, Carlisle School District has the highest rating on this site at 10/10. That places it in the 99th percentile among Massachusetts school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Massachusetts reading and math assessments, ranked against other districts in Massachusetts and converted to a 1–10 scale. Percentiles compare districts within Massachusetts only, never across state lines.