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

Middle Schools in Lexington

New rankings! Massachusetts test scores for the 2025-26 school year were just released — SchoolDigger posted updated rankings TODAY.

Be the first to know when we post new rankings!

At a glance

DistrictLexington6^th of 351 Massachusetts districtsFull district overview →

Schools

1,732

Students

5-star schools

Top rankedJonas Clarke Middle3^rd of 478 Massachusetts middle schools

Compare Massachusetts districts →See the top-ranked Massachusetts schools →

Summary:

There are two middle schools in the Lexington district in Massachusetts: Wm Diamond Middle and Jonas Clarke Middle, both serving grades 6–8 in a district ranked 6th of 351 statewide, at the 98th percentile with 5 stars. Wm Diamond Middle enrolls 936 students and Jonas Clarke Middle enrolls 796; both report a 9.4 student-teacher ratio in 2024–2025. Their 2020–2021 per-student spending was $19,867 at Wm Diamond Middle and $20,815 at Jonas Clarke Middle. Free/reduced-lunch data are not reported for either school, so that context is unknown rather than 0%.

Both schools are among the state’s elite. Jonas Clarke Middle was ranked 3rd of 478 in 2025–2026, 1st of 484 in 2024–2025, and 2nd of 493 in 2023–2024, while Wm Diamond Middle was ranked 10th, 11th, and 7th in the same years; both earned 5 stars and sat at the 98th–100th percentile. Jonas Clarke Middle generally leads in 2025–2026 all-grade ELA, math, science, and civics, with its biggest advantages in 7th-grade ELA (80.53 vs. 66.77, +13.76) and 7th-grade math (87.40 vs. 78.46, +8.94); its 7th-grade math score of 87.40 is the highest single 2025–2026 score in the file. Wm Diamond Middle stands out in 8th grade, beating Jonas Clarke Middle in ELA (81.38 vs. 79.03) and math (85.12 vs. 81.06).

Math is the strongest subject at both schools: all-grade math is 82.72 at Wm Diamond Middle and 84.23 at Jonas Clarke Middle, far above district and state. Every reported 2025–2026 score at both schools is at least about 27 percentage points above the state in its subject/grade. Science dipped at Jonas Clarke Middle from 81.06 to 76.63 (-4.43) but is still strong, while Wm Diamond Middle was nearly flat, 75.58 to 75.00. Civics improved at both, but Jonas Clarke Middle remains ahead: 78.41 to 79.77 (+1.36), versus Wm Diamond Middle 69.54 to 74.31 (+4.77), which remains below district civics by 2.10 points. The data do not establish causation between spending and outcomes, and the missing free/reduced-lunch figure should not be used to explain performance differences.

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	Free/Discounted Lunch Recipients (2015)	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
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	5.2%	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
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	4.8%	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

Districts nearby

District	Distance	# of Schools	Statewide Rank
Minuteman Regional Vocational Technical	1.07 mi	1	105^th
Lincoln	1.43 mi	2	83^rd
Waltham	2.89 mi	11	231^st
Bedford	3.37 mi	4	25^th
Arlington	3.89 mi	11	17^th

See the top MA Massachusetts districts

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.