Beta You're viewing our redesigned school page. Prefer the classic layout?

Wm Diamond Middle

Public Grades 6-8

10^th

SchoolDigger Rank ?

of 478 Massachusetts Middle Schools

Better than 98% of Massachusetts middle schools

Summary

Wm Diamond Middle is a grades 6–8 school in suburban Lexington, MA, serving 936 students as part of Lexington Public Schools. It ranks 10th of 478 Massachusetts middle schools in 2025–2026, at the 98th percentile with 5 stars, and its district ranks 6th of 351. The school has been in the top 1–2% of the state for a decade, with peaks such as #2 in 2021–2022 and #3 in 2020–2021; recent ranks are slightly lower but still exceptional.

In 2025–2026, Wm Diamond Middle’s all-grade proficiency was 73.74% in English language arts, 82.72% in math, 75.00% in science, and 74.31% in civics—far above Massachusetts and generally at or above the Lexington district. Math is the clearest strength, and 8th grade ELA and math are especially strong. The relative weak spot is 7th grade: 7th grade ELA was 66.77%, 5.02 points below the district, and 7th grade math was 78.46%, 2.63 points below. Compared with nearby schools, Wm Diamond Middle trails Jonas Clarke Middle, which ranks #3 statewide and has higher all-grade scores, but Wm Diamond Middle’s 8th grade ELA and math exceed Clarke’s. Wm Diamond Middle also beats Belmont Middle School and Ottoson Middle in math, though those schools score higher in science and civics. It outperforms McCall Middle across subjects.

Resources may help explain the results: Wm Diamond Middle has a student-teacher ratio of 9.4, tied with Jonas Clarke Middle and lower than Belmont Middle School, Ottoson Middle, and McCall Middle. Per-student spending was $19,867 in 2020–2021, less than some nearby schools such as John F Kennedy Middle and Marshall Simonds Middle, yet Wm Diamond Middle’s proficiency is much higher. The school’s subgroup effectiveness is very high for English Language Learner students, Special Education students, and low-income students, though a few groups have lower relative rankings. Civics is a relative soft spot locally, and free/reduced-lunch data are not available, so socioeconomic composition cannot be compared directly; some nearby schools also serve different grade spans, so comparisons need care.

936

Students ?

9.4

Student/teacher ratio ?

$17,728

Per pupil spending ?

12.6%

Directly certified for free meals (2024-25) ?

All students in Massachusetts receive free school meals.

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%

See top rated Massachusetts middle schools

Compare Wm Diamond Middle to nearby middle schools!

At a glance

▬ Ranking trend: Holding steady — 99th percentile in 2016 → 98th in 2026

Strengths

✓Test scores above the Massachusetts average (77% 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 (2025-2026) ?

This school77%

District avg76%

Massachusetts avg41%

10^th of 478

Massachusetts public middle schools ?

Top 2%▼ down 1 pts since 2016

See the entire ranking list of Massachusetts Middle Schools →

★★★★★

SchoolDigger rating ?

2^nd of 2Middle Schools in the Lexington

6^th of 351Lexington 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

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	96.8	10 of 478	97.9%	★★★★★
2025	96.3	11 of 484	97.7%	★★★★★
2024	97.1	7 of 493	98.6%	★★★★★
2023	97.8	4 of 501	99.2%	★★★★★
2022	98.3	2 of 497	99.6%	★★★★★
2021	97.7	3 of 501	99.4%	★★★★★
2019	96.6	3 of 498	99.4%	★★★★★
2018	96.7	4 of 484	99.2%	★★★★★
2017	97.1	3 of 487	99.4%	★★★★★
2016	92.6	7 of 482	98.5%	★★★★★
2015	91.6	11 of 441	97.5%	★★★★★
2014	92.1	5 of 455	98.9%	★★★★★
2013	93.0	3 of 455	99.3%	★★★★★
2012	92.6	5 of 455	98.9%	★★★★★
2011	91.5	8 of 449	98.2%	★★★★★
2010	91.7	7 of 434	98.4%	★★★★★
2009	93.3	4 of 409	99.0%	★★★★★
2008	93.8	2 of 407	99.5%	★★★★★
2007	93.0	3 of 399	99.2%	★★★★★
2006	94.7	1 of 399	99.7%	★★★★★
2005	95.6	2 of 356	99.4%	★★★★★
2004	93.7	10 of 344	97.1%	★★★★★
2003	95.1	3 of 339	99.1%	★★★★★

African American

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	60.7	70 of 215	67.4%	★★★☆☆
2025	68.3	46 of 206	77.7%	★★★★☆
2024	55.7	68 of 202	66.3%	★★★☆☆
2023	27.5	160 of 209	23.4%	★☆☆☆☆
2022	44.9	104 of 212	50.9%	★★★☆☆
2021	22.2	168 of 193	13.0%	★☆☆☆☆
2018	75.2	27 of 172	84.3%	★★★★☆

Asian

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	77.8	24 of 131	81.7%	★★★★☆
2025	78.3	27 of 127	78.7%	★★★★☆
2024	78.8	20 of 120	83.3%	★★★★☆
2023	83.1	13 of 134	90.3%	★★★★★
2022	85.3	10 of 135	92.6%	★★★★★
2021	84.8	7 of 123	94.3%	★★★★★
2019	84.4	3 of 128	97.7%	★★★★★
2018	81.8	11 of 119	90.8%	★★★★★

Disabled

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2022	99.4	2 of 445	99.6%	★★★★★
2021	98.5	5 of 431	98.8%	★★★★★
2019	99.2	1 of 424	99.8%	★★★★★
2018	99.0	1 of 417	99.8%	★★★★★

English Language Learner

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2025	97.7	2 of 181	98.9%	★★★★★
2024	99.8	3 of 180	98.3%	★★★★★
2023	98.0	1 of 155	99.4%	★★★★★
2022	100.0	1 of 154	99.4%	★★★★★
2021	99.9	3 of 135	97.8%	★★★★★
2019	99.7	2 of 138	98.6%	★★★★★
2018	99.5	2 of 127	98.4%	★★★★★

Female

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	95.5	12 of 468	97.4%	★★★★★
2025	95.3	12 of 473	97.5%	★★★★★
2024	96.4	5 of 481	99.0%	★★★★★
2023	97.3	2 of 489	99.6%	★★★★★
2022	97.8	2 of 494	99.6%	★★★★★
2021	97.3	1 of 483	99.8%	★★★★★
2019	95.1	5 of 478	99.0%	★★★★★
2018	95.1	3 of 463	99.4%	★★★★★

Hispanic

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	97.7	4 of 383	99.0%	★★★★★
2025	91.9	24 of 376	93.6%	★★★★★
2024	87.9	30 of 378	92.1%	★★★★★
2023	95.8	9 of 364	97.5%	★★★★★
2022	93.2	23 of 368	93.8%	★★★★★
2021	98.0	6 of 335	98.2%	★★★★★
2019	87.5	27 of 322	91.6%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	96.7	8 of 461	98.3%	★★★★★
2025	95.2	7 of 464	98.5%	★★★★★
2024	92.1	12 of 469	97.4%	★★★★★
2023	82.5	48 of 481	90.0%	★★★★★
2022	88.2	25 of 489	94.9%	★★★★★
2021	59.4	146 of 462	68.4%	★★★☆☆
2019	89.2	28 of 452	93.8%	★★★★★
2018	83.0	35 of 438	92.0%	★★★★★

Male

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	97.0	8 of 470	98.3%	★★★★★
2025	96.3	10 of 473	97.9%	★★★★★
2024	96.9	7 of 483	98.6%	★★★★★
2023	97.4	4 of 489	99.2%	★★★★★
2022	98.1	6 of 497	98.8%	★★★★★
2021	97.4	8 of 485	98.4%	★★★★★
2019	96.8	3 of 478	99.4%	★★★★★
2018	97.1	5 of 466	98.9%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	86.4	11 of 112	90.2%	★★★★★
2025	85.4	12 of 116	89.7%	★★★★★
2024	89.4	8 of 98	91.8%	★★★★★
2023	91.8	6 of 110	94.5%	★★★★★
2022	92.2	6 of 102	94.1%	★★★★★
2021	85.9	14 of 92	84.8%	★★★★☆
2019	79.6	18 of 87	79.3%	★★★★☆
2018	81.8	19 of 84	77.4%	★★★★☆

Special Education

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	98.1	9 of 436	97.9%	★★★★★
2025	96.5	12 of 435	97.2%	★★★★★
2024	99.4	2 of 441	99.5%	★★★★★
2023	98.8	5 of 444	98.9%	★★★★★
2022	99.0	2 of 503	99.6%	★★★★★
2021	97.5	7 of 489	98.6%	★★★★★
2019	98.2	6 of 484	98.8%	★★★★★
2018	97.4	5 of 467	98.9%	★★★★★

Tested In Person

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2021	97.4	3 of 491	99.4%	★★★★★

Tested Remotely

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2021	98.5	5 of 339	98.5%	★★★★★

White

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	89.6	36 of 393	90.8%	★★★★★
2025	90.7	26 of 386	93.3%	★★★★★
2024	92.4	20 of 392	94.9%	★★★★★
2023	95.1	9 of 403	97.8%	★★★★★
2022	95.7	10 of 404	97.5%	★★★★★
2021	94.0	11 of 401	97.3%	★★★★★
2019	94.0	7 of 396	98.2%	★★★★★
2018	94.2	10 of 395	97.5%	★★★★★

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

Hispanic (2026)99th percentile~ school

English Language Learner (2025)99th percentile~ school

Tested Remotely (2021)99th percentile~ school

Male (2026)98th percentile~ school

Low Socio Economic Status (2026)98th percentile~ school

Special Education (2026)98th percentile~ school

Female (2026)97th percentile~ school

White (2026)91st percentile-7 vs school

Multi-racial (2026)90th percentile-8 vs school

Asian (2026)82nd percentile-16 vs school

African American (2026)67th percentile-30 vs school

By subject vs Massachusetts (2025-2026) ?

Mathematics83%+42 vs state

Science75%+34 vs state

Civics74%+35 vs state

English Language Arts74%+34 vs state

5.0

2 ratings · 2 written reviews

5★2

4★0

3★0

2★0

1★0

Rate Wm Diamond Middle

Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.

Takes about a minute. We email you a link to verify your review - your address is never shown publicly.

Tap a star to rate

What people are saying

by a student
Wednesday, February 2, 2011

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

by a student
Tuesday, January 26, 2010

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

Schools Near Wm Diamond Middle

Load more schools when map is moved

Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				MCAS Next Generation English Language Arts (2026)				MCAS Next Generation Mathematics (2026)				MCAS Next Generation Science (2026)		MCAS Next Generation Civics (2026)	Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Directly certified (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	MCAS Next Generation English Language Arts 6th Grade	MCAS Next Generation English Language Arts 7th Grade	MCAS Next Generation English Language Arts 8th Grade	MCAS Next Generation English Language Arts All Grades	MCAS Next Generation Mathematics 6th Grade	MCAS Next Generation Mathematics 7th Grade	MCAS Next Generation Mathematics 8th Grade	MCAS Next Generation Mathematics All Grades	MCAS Next Generation Science 8th Grade	MCAS Next Generation Science All Grades	MCAS Next Generation Civics 8th Grade	Total
Wm Diamond Middle	Public	6-8	99 Hancock Street	Lexington	02420	Middlesex County	Lexington	No	No	No	No	(781) 861-2460	936	99	9.4	12.6%	329 (35.1%)	38 (4.1%)	71 (7.6%)	417 (44.6%)	0 (0.0%)	0 (0.0%)	81 (8.7%)	96.8	10^th of 478 public middle schools	97.9%		96.3	11^th of 484 public middle schools	97.7%	1	73.5	66.8	81.4	73.7	84.9	78.5	85.1	82.7	75.0	75.0	74.3	$17,728
Jonas Clarke Middle	Public	6-8	17 Stedman Rd	Lexington	02421	Middlesex County	Lexington	No	No	No	No	(781) 861-2450	796	85	9.4	9.9%	314 (39.4%)	42 (5.3%)	41 (5.2%)	338 (42.5%)	0 (0.0%)	0 (0.0%)	60 (7.5%)	97.9	3^rd of 478 public middle schools	99.4%		98.1	1^st of 484 public middle schools	99.8%	2	78.3	80.5	79.0	79.3	84.3	87.4	81.1	84.2	76.6	76.6	79.8	$19,067
Daniel L Joyce Middle School	Public	6-8	55 Locust Street	Woburn	01801	Middlesex County	Woburn	No	No	No	No	(781) 937-8233	455	55	8.3	40.9%	312 (68.6%)	40 (8.8%)	60 (13.2%)	14 (3.1%)	8 (1.8%)	0 (0.0%)	19 (4.2%)	47.9	219^th of 478 public middle schools	54.2%		40.5	267^th of 484 public middle schools	44.8%	48	37.1	40.8	42.6	39.9	32.9	32.3	43.0	35.3	34.6	34.6	34.9	$26,187
John Glenn Middle	Public	6-8	99 McMahon Road	Bedford	01730	Middlesex County	Bedford	No	No	No	No	(781) 275-3201	604	59	10.2	15.6%	337 (55.8%)	47 (7.8%)	39 (6.5%)	134 (22.2%)	0 (0.0%)	0 (0.0%)	47 (7.8%)	92.1	39^th of 478 public middle schools	91.8%		92.4	40^th of 484 public middle schools	91.7%	1	71.5	63.0	70.9	68.5	73.0	64.9	65.3	67.5	64.0	64.0	70.0	$23,504
Marshall Simonds Middle	Public	6-8	114 Winn Street	Burlington	01803	Middlesex County	Burlington	No	No	No	No	(781) 270-1781	848	73	11.6	19.3%	519 (61.2%)	63 (7.4%)	90 (10.6%)	132 (15.6%)	2 (0.2%)	2 (0.2%)	39 (4.6%)	74.1	105^th of 478 public middle schools	78.0%		76.3	101^st of 484 public middle schools	79.1%	4	48.9	49.6	58.1	52.2	47.7	50.2	57.3	51.7	43.9	43.9	60.8	$24,087
Ottoson Middle	Public	7-8	63 Acton Street	Arlington	02476	Middlesex County	Arlington	No	No	No	No	(781) 316-3745	963	85	11.3	10.4%	651 (67.6%)	28 (2.9%)	82 (8.5%)	132 (13.7%)	0 (0.0%)	0 (0.0%)	62 (6.4%)	97.3	5^th of 478 public middle schools	99.0%		97.2	4^th of 484 public middle schools	99.2%	1		75.6	79.5	77.4		71.8	81.2	76.2	77.6	77.6	82.7	$20,016
John F Kennedy Middle	Public	6-8	655 Lexington St	Waltham	02452	Middlesex County	Waltham	No	No	No	Yes	(781) 314-5563	635	61	10.3	37.2%	282 (44.4%)	70 (11.0%)	214 (33.7%)	34 (5.4%)	1 (0.2%)	0 (0.0%)	34 (5.4%)	68.4	133^rd of 478 public middle schools	72.2%		67.1	142^nd of 484 public middle schools	70.7%	9	45.9	47.2	52.9	48.7	43.8	43.7	58.2	48.6	45.4	45.4	49.8	$24,123
John F Kennedy Middle School	Public	6-8	33 Middle Street	Woburn	01801	Middlesex County	Woburn	No	No	No	No	(781) 937-8230	521	51	10.2	41.8%	325 (62.4%)	44 (8.4%)	89 (17.1%)	41 (7.9%)	6 (1.2%)	0 (0.0%)	16 (3.1%)	38.1	270^th of 478 public middle schools	43.5%		46.5	231^st of 484 public middle schools	52.3%	39	27.4	34.0	36.0	32.5	17.2	26.5	36.7	26.9	35.8	35.8	36.7	$22,656
McCall Middle	Public	6-8	458 Main Street	Winchester	01890	Middlesex County	Winchester	No	No	No	No	(781) 721-7026	1,036	82	12.6	9.1%	677 (65.3%)	11 (1.1%)	36 (3.5%)	220 (21.2%)	1 (0.1%)	0 (0.0%)	90 (8.7%)	94.2	27^th of 478 public middle schools	94.4%		95.1	20^th of 484 public middle schools	95.9%	7	60.5	69.3	69.9	66.4	73.8	71.9	82.2	75.9	74.2	74.2	74.1	$18,195
Gibbs School	Public	6	41 Foster Street	Arlington	02474	Middlesex County	Arlington	No	No	No	No	(781) 316-9003	529	43	12.4	10.6%	354 (66.9%)	24 (4.5%)	37 (7.0%)	56 (10.6%)	0 (0.0%)	0 (0.0%)	55 (10.4%)								(n/a)	71.2			71.2	68.6			68.6				$20,737

Frequently Asked Questions about Wm Diamond Middle

Is Wm Diamond Middle a good school?

Yes! Wm Diamond Middle is one of the best middle schools in the state. It ranks 10^th of 478 Massachusetts middle schools.

What high school do graduates of Wm Diamond Middle attend?

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

What is the racial makeup of Wm Diamond Middle?

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

How many students attend Wm Diamond Middle?

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

What district is Wm Diamond Middle in?

Lexington

Rate Wm Diamond Middle!

Other helpful SchoolDigger resources...

Compare to nearby schools

MAMassachusetts Middle School Rankings

MAMassachusetts District Rankings

Schools in Lexington, MA

Sign up for updates!

Be the first to know when there is an update for Wm Diamond Middle!

Latest Massachusetts data All new data »

2013–14 through 2025–26 immunization rates (updated)NewOct 20, 2026

2024–25 dropout rates & graduation ratesMar 5, 2026

2024–25 MCAS Next Generation test scoresSep 29, 2025

2023–24 school spending dataMay 8, 2025

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.