Wm Diamond Middle

Located at 99 Hancock Street, in Lexington, Massachusetts, Wm Diamond Middle is a roomy junior high that enrolls 936 students (grades 6 through 8), overseen by Lexington. That puts it 71% larger than the typical public school in Massachusetts, which averages around 547 students.

Lexington comprises 10 schools with combined enrollment of 6,748 students; Wm Diamond Middle is among them.

Demographically, Wm Diamond Middle records that the most-represented group is Asian (45%), with the rest of the student body spread across multiple groups. The remainder comes out to 35% White, 9% multiracial, 8% Hispanic, 4% Black. That is visibly more Asian than the county at large, where the share is closer to 14%.

Looking at school resources, On paper, Wm Diamond Middle has 99 full-time-equivalent teachers, translating to a class-load average of around 9.4:1. That figure is tighter than the state norm's 11.5:1 average.

Around the school, Middlesex County reports that median household income runs about $130,847, roughly 60% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. In all, Middlesex County runs 386 public schools (combined enrollment of about 215,896 students), of which Wm Diamond Middle is one.

Fiske is the nearest neighboring public school, about 0.5 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Wm Diamond Middle.

Geographically, the school is in a suburban area.

Five-year trend. Over the past 7-year window, the student count edged up 6%: 887 students in 2018 compared to 936 in 2025. Over the same period, the White share fell from 49% to 35%. Class-load math has pulled in: from 11.2:1 in 2018 to 9.4:1 in 2025.

Within the allk12 community for this school, members of the Wm Diamond Middle community share and discuss science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.