Wm Diamond Middle
Score 98.4/100: better than 98% of Massachusetts middle schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% meeting or exceeding expectations on state tests in Massachusetts, all students. Colored bars are green when the school is at or above the average for similar Massachusetts schools.
Results over time
How this school's published results have moved year by year.
All 11 published results by grade and test
As published by Massachusetts Department of Elementary and Secondary Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 6 | MCAS ELA | 74 | 291 |
| English language arts | Grade 7 | MCAS ELA | 67 | 310 |
| English language arts | Grade 8 | MCAS ELA | 81 | 290 |
| English language arts | All grades | MCAS ELA | 74 | 891 |
| Math | Grade 6 | MCAS Mathematics | 85 | 291 |
| Math | Grade 7 | MCAS Mathematics | 78 | 311 |
| Math | Grade 8 | MCAS Mathematics | 85 | 289 |
| Math | All grades | MCAS Mathematics | 83 | 891 |
| Science | Grade 8 | MCAS Science | 75 | 288 |
| Science | All grades | MCAS Science | 75 | 288 |
| Social studies | Grade 8 | MCAS Civics | 74 | 288 |
School profile
- Grades
- 6-8
- Students
- 927
- Type
- Middle school
- Charter school
- No
- Program
- Regular
Students
Contact
"Typical" is the middle (median) middle school in Massachusetts. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24).
Nearby middle schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Lexington
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Wm Diamond Middle at a glance
Wm Diamond Middle is a public middle school in Lexington, Massachusetts, serving grades 6-8. It is part of the Lexington school district. It has about 927 students (a typical Massachusetts middle school has 543).
In 2025-26 state tests, 74% in English language arts (similar schools: 43%) and 83% in math (similar schools: 43%) reached the state standard (% meeting or exceeding expectations). On our score, which compares it only with other Massachusetts middle schools, it scores 98.4 out of 100: better than 98% of them, ranking #5 of 274. Its English language arts result was broadly unchanged from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.