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Wm Diamond Middle

Public Grades 6-8
11th
SchoolDigger Rank ?
of 484 Massachusetts Middle Schools
Better than 98% of Massachusetts middle schools
Summary

Wm Diamond Middle is a highly-ranked public middle school located in Lexington, Massachusetts, serving grades 6-8 with an enrollment of 927 students. The school is part of the Lexington school district, which is ranked 4th out of 348 districts in Massachusetts and has a 5-star rating from SchoolDigger.

Wm Diamond Middle has consistently been ranked among the top 11 middle schools in Massachusetts for the past 10 school years, with a 5-star rating from SchoolDigger, placing it in the top 2-3% of middle schools in the state. The school's exceptional performance extends across various student subgroups, including female students, male students, Asian students, Hispanic students, white students, multi-racial students, English language learners, special education students, and low socioeconomic status students. This indicates the school's ability to provide a high-quality education to a diverse student population. Wm Diamond Middle consistently outperforms the state and Lexington district averages in MCAS Next Generation assessments for English Language Arts, Mathematics, and Science, with proficiency rates ranging from 69.54% to 82.98% across different grade levels and subject areas.

Compared to nearby schools, such as Jonas Clarke Middle in Lexington, which is also a top-performing school, Wm Diamond Middle outperforms in several academic areas. Additionally, the school has maintained its high performance and ranking over the past 10 school years, demonstrating a consistent commitment to academic excellence and continuous improvement. Wm Diamond Middle's exceptional student-teacher ratio of 9.4 to 10.0, which is lower than the state average, allows for more individualized attention and support for students.

936
Students ?
9.4
Student/teacher ratio ?
$17,728
Per pupil spending ?
4.8%
Free/discounted lunch ?
 99 Hancock Street
       Lexington, MA  02420

(781) 861-2460

District: Lexington


Students who attend Wm Diamond Middle usually attend:

High:    Lexington High

Feeder schools for Wm Diamond Middle:

Elementary:    Fiske
    Joseph Estabrook
    Maria Hastings
Racial breakdown:

Asian:
44.6%
White:
35.1%
Two or more races:
8.7%
more
 See top rated Massachusetts middle schools

 Compare Wm Diamond Middle to nearby middle schools!
At a glance
Ranking trend: Holding steady — 98th percentile in 2015 → 98th in 2025
Strengths
Test scores above the Massachusetts average (76% vs 41% meeting standards)
Ranks in the top 2% of Massachusetts middle schools
Small classes — about 9 students per teacher
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2024-2025) ?
This school76%
District avg76%
Massachusetts avg41%
11th of 484
Massachusetts public middle schools ?
Top 2%▬ steady since 2015
See the entire ranking list of Massachusetts Middle Schools →
SchoolDigger rating ?
2nd of 2Middle Schools in the Lexington
4th of 348Lexington among Massachusetts districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankMassachusetts percentileRating
202596.311 of 48497.7%★★★★★
202497.17 of 49398.6%★★★★★
202397.84 of 50199.2%★★★★★
202298.32 of 49799.6%★★★★★
202197.73 of 50199.4%★★★★★
201996.63 of 49899.4%★★★★★
201896.74 of 48499.2%★★★★★
201797.13 of 48799.4%★★★★★
201692.67 of 48298.5%★★★★★
201591.611 of 44197.5%★★★★★
201492.15 of 45598.9%★★★★★
201393.03 of 45599.3%★★★★★
201292.65 of 45598.9%★★★★★
201191.58 of 44998.2%★★★★★
201091.77 of 43498.4%★★★★★
200993.34 of 40999.0%★★★★★
200893.82 of 40799.5%★★★★★
200793.03 of 39999.2%★★★★★
200694.71 of 39999.7%★★★★★
200595.62 of 35699.4%★★★★★
200493.710 of 34497.1%★★★★★
200395.13 of 33999.1%★★★★★

African American

YearAvg scoreStatewide rankMassachusetts percentileRating
202568.346 of 20677.7%★★★★☆
202455.768 of 20266.3%★★★☆☆
202327.5160 of 20923.4%★☆☆☆☆
202244.9104 of 21250.9%★★★☆☆
202122.2168 of 19313.0%★☆☆☆☆
201875.227 of 17284.3%★★★★☆

Asian

YearAvg scoreStatewide rankMassachusetts percentileRating
202578.327 of 12778.7%★★★★☆
202478.820 of 12083.3%★★★★☆
202383.113 of 13490.3%★★★★★
202285.310 of 13592.6%★★★★★
202184.87 of 12394.3%★★★★★
201984.43 of 12897.7%★★★★★
201881.811 of 11990.8%★★★★★

Disabled

YearAvg scoreStatewide rankMassachusetts percentileRating
202299.42 of 44599.6%★★★★★
202198.55 of 43198.8%★★★★★
201999.21 of 42499.8%★★★★★
201899.01 of 41799.8%★★★★★

English Language Learner

YearAvg scoreStatewide rankMassachusetts percentileRating
202597.72 of 18198.9%★★★★★
202499.83 of 18098.3%★★★★★
202398.01 of 15599.4%★★★★★
2022100.01 of 15499.4%★★★★★
202199.93 of 13597.8%★★★★★
201999.72 of 13898.6%★★★★★
201899.52 of 12798.4%★★★★★

Female

YearAvg scoreStatewide rankMassachusetts percentileRating
202595.312 of 47397.5%★★★★★
202496.45 of 48199.0%★★★★★
202397.32 of 48999.6%★★★★★
202297.82 of 49499.6%★★★★★
202197.31 of 48399.8%★★★★★
201995.15 of 47899.0%★★★★★
201895.13 of 46399.4%★★★★★

Hispanic

YearAvg scoreStatewide rankMassachusetts percentileRating
202591.924 of 37693.6%★★★★★
202487.930 of 37892.1%★★★★★
202395.89 of 36497.5%★★★★★
202293.223 of 36893.8%★★★★★
202198.06 of 33598.2%★★★★★
201987.527 of 32291.6%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankMassachusetts percentileRating
202595.27 of 46498.5%★★★★★
202492.112 of 46997.4%★★★★★
202382.548 of 48190.0%★★★★★
202288.225 of 48994.9%★★★★★
202159.4146 of 46268.4%★★★☆☆
201989.228 of 45293.8%★★★★★
201883.035 of 43892.0%★★★★★

Male

YearAvg scoreStatewide rankMassachusetts percentileRating
202596.310 of 47397.9%★★★★★
202496.97 of 48398.6%★★★★★
202397.44 of 48999.2%★★★★★
202298.16 of 49798.8%★★★★★
202197.48 of 48598.4%★★★★★
201996.83 of 47899.4%★★★★★
201897.15 of 46698.9%★★★★★

Multi-racial

YearAvg scoreStatewide rankMassachusetts percentileRating
202585.412 of 11689.7%★★★★★
202489.48 of 9891.8%★★★★★
202391.86 of 11094.5%★★★★★
202292.26 of 10294.1%★★★★★
202185.914 of 9284.8%★★★★☆
201979.618 of 8779.3%★★★★☆
201881.819 of 8477.4%★★★★☆

Special Education

YearAvg scoreStatewide rankMassachusetts percentileRating
202596.512 of 43597.2%★★★★★
202499.42 of 44199.5%★★★★★
202398.85 of 44498.9%★★★★★
202299.02 of 50399.6%★★★★★
202197.57 of 48998.6%★★★★★
201998.26 of 48498.8%★★★★★
201897.45 of 46798.9%★★★★★

Tested In Person

YearAvg scoreStatewide rankMassachusetts percentileRating
202197.43 of 49199.4%★★★★★

Tested Remotely

YearAvg scoreStatewide rankMassachusetts percentileRating
202198.55 of 33998.5%★★★★★

White

YearAvg scoreStatewide rankMassachusetts percentileRating
202590.726 of 38693.3%★★★★★
202492.420 of 39294.9%★★★★★
202395.19 of 40397.8%★★★★★
202295.710 of 40497.5%★★★★★
202194.011 of 40197.3%★★★★★
201994.07 of 39698.2%★★★★★
201894.210 of 39597.5%★★★★★
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Disabled (2022)100th percentile~ school
Tested In Person (2021)99th percentile~ school
English Language Learner (2025)99th percentile~ school
Tested Remotely (2021)99th percentile~ school
Low Socio Economic Status (2025)98th percentile~ school
Male (2025)98th percentile~ school
Female (2025)97th percentile~ school
Special Education (2025)97th percentile~ school
Hispanic (2025)94th percentile-4 vs school
White (2025)93rd percentile-4 vs school
Multi-racial (2025)90th percentile-8 vs school
Asian (2025)79th percentile-19 vs school
African American (2025)78th percentile-20 vs school
By subject vs Massachusetts (2024-2025) ?
Mathematics79%+38 vs state
Science76%+34 vs state
English Language Arts75%+34 vs state
Civics70%+30 vs state

5.0
2 ratings · 2 written reviews
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What people are saying
by a student
Wednesday, February 2, 2011

Open Quote BEST SCHOOL EVER!!!!!!!!!!!!!!!!! Close Quote


by a student
Tuesday, January 26, 2010

Open Quote This was a great school. Teachers were very good and the culture and community for students was exceptional. I was in the student government and loved the student body. Close Quote





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Frequently Asked Questions about Wm Diamond Middle

Students who attend Wm Diamond Middle usually go on to attend Lexington High

Yes! Wm Diamond Middle is one of the best middle schools in the state. It ranks 11th of 484 Massachusetts middle schools.

In the 2024-25 school year, 936 students attended Wm Diamond Middle.

Students at Wm Diamond Middle are 45% Asian, 35% White, 9% Two or more races, 8% Hispanic, 4% African American.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Massachusetts Department of Elementary and Secondary Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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